AboutKidsHealth (FR) AKH-Article

 

 

FièvreFFièvreFeverFrenchNAChild (0-12 years);Teen (13-18 years)BodyImmune systemConditions and diseasesCaregivers Adult (19+)Fever2016-04-27T04:00:00ZElana Hochstadter, MD;Tania Principi, MD, FRCPC, MSc10.000000000000051.00000000000001966.00000000000Health (A-Z) - ConditionsHealth A-Z<p>Lisez sur les signes, la cause, la durée et le traitement approprié de la fièvre. Les réponses sont fiables puisqu'elles proviennent du SickKids.</p><p>La fièvre peut être un signe que le corps combat une infection. Lorsqu’une bactérie ou un virus active le système de défense du corps (système immunitaire), de nombreuses réactions se produisent : la fièvre est le signe de l’une de ces réactions. La fièvre n’est pas une maladie en soi, mais une indication que quelque chose ne va pas dans le corps. L’apparence et le comportement de votre enfant sont plus importants que le degré de la fièvre.</p><h2>À retenir</h2><ul><li>La fièvre est habituellement un signe que le corps combat une infection.</li><li>Une température supérieure à 38°C (100,4°F) indique de la fièvre.<br></li><li>Consultez immédiatement votre médecin si votre enfant a de la fièvre depuis plus de 3 jours ou s’il a de la fièvre et est âgé de moins de 3 mois.</li><li>Surveillez l’apparence et le comportement de votre enfant. Notez le nombre de jours que dure la fièvre.</li><li>Pour aider l’enfant à se sentir mieux, habillez-le légèrement. Donnez beaucoup de liquide à boire à votre enfant et administrez-lui de l’acétaminophène ou de l’ibuprofène si cela semble lui faire du bien.</li></ul><h2>À quoi vous attendre lorsque votre enfant a de la fièvre</h2><p>La fièvre peut monter ou diminuer sans aucun médicament. L’enfant qui a de la fièvre peut se sentir mal à l’aise.</p><ul><li>L’enfant peut être légèrement irritable ou avoir mal, dans le cas de symptômes bénins. Certains enfants sont moins actifs et ont plus envie de dormir. Ils peuvent ne pas avoir envie de boire ni de manger.</li><li>Dans certains cas, la fièvre entraîne des tremblements (frissons ou raideurs) lorsque la température corporelle change. Le corps utilise ce genre de tremblement pour essayer de réguler sa température. Il ne s’agit pas d’une crise ou de convulsion et ce n’est pas lié à des changements dans le niveau de conscience de l’enfant.</li><li>Environ 5 % des enfants âgés de six mois à six ans peuvent avoir des <a href="/Article?contentid=1&language=French">convulsions fébriles</a>. Il s’agit d’épisodes de convulsions ou de poussées fébriles associées à la fièvre. Vous devriez emmener l’enfant chez le médecin après une convulsion fébrile, mais en général elles ne sont pas dangereuses.</li></ul><p>Le type d’infection responsable de la fièvre détermine la récurrence et la durée de la fièvre. S’il s’agit d’une infection virale, la fièvre peut durer de deux à trois jours jusqu’à deux semaines. En cas d’infection bactérienne, la fièvre va durer jusqu’à ce que l’enfant soit traité avec des antibiotiques.</p><h2>Qu’est-ce qui cause la fièvre?</h2> <p>De nombreuses infections variées peuvent occasionner de la fièvre. Pour déterminer la cause de la fièvre chez votre enfant, le médecin recherchera d’autres signes ou symptômes de maladie, plutôt que de s’occuper de la fièvre elle-même. Le degré de fièvre ne permet pas au médecin de déterminer si l’infection est bénigne ou grave, ou si elle est causée par une bactérie ou un virus.</p> <p>Il est important de savoir depuis combien de jours votre enfant a de la fièvre. Il serait bon de noter la température de votre enfant de façon à rapporter exactement au médecin depuis combien de temps votre enfant a de la fièvre.</p> <h3>La fièvre peut être causée par d’autres états de santé :</h3> <ul> <li>Une augmentation légère de la température peut être due à l’exercice, au fait d’être vêtu trop chaudement, après un bain chaud ou une douche chaude ou en raison du temps chaud.</li> <li>Dans de rares cas, <a href="/Article?contentid=1915&language=French">un coup de chaleur</a> ou la prise de certains médicaments ou de certaines drogues peut entraîner une augmentation importante, voire dangereuse, de la température corporelle.</li> <li><a href="/Article?contentid=1986&language=French">Une vaccination</a> peut entraîner de la fièvre.</li> <li>Certaines maladies non infectieuses et états inflammatoires peuvent entraîner de la fièvre de manière persistante ou récurrente.</li> </ul> <h3>La poussée des dents ne provoque pas de fièvre.</h3> <p>De nombreuses personnes pensent que la <a href="/Article?contentid=304&language=French">poussée des dents</a> provoque de la fièvre. Les recherches scientifiques ont démontré que la poussée des dents ne cause pas réellement de la fièvre. Si votre bébé a de la fièvre, ne présumez pas que c’est à cause de la poussée de ses dents.</p><h2>Mon enfant a-t-il de la fièvre?</h2><h3>Si la température est supérieure à 38°C (100,4°F), il s’agit de fièvre.</h3><p>Un enfant est souvent chaud au toucher en cas de fièvre. Utilisez un thermomètre pour mesurer la température corporelle de l’enfant afin de confirmer s’il a de la fièvre. Une température supérieure à 38°C (100,4°F) indique que l’enfant a de la fièvre.​</p><h3>Prendre la température de l’enfant</h3><p>NE PAS utiliser un thermomètre en verre qui contient du mercure.</p><p>La <a href="/Article?contentid=966&language=French">façon la plus exacte de prendre la température</a> est avec un thermomètre utilisé d’une des façons suivantes :</p><ul class="akh-steps"><li> <figure><span class="asset-image-title">Prise de la température rectale</span><img src="https://assets.aboutkidshealth.ca/akhassets/IMD_temperature_rectal_FR.jpg" alt="Bébé étendu sur son ventre sur les genoux d'une personne insérant un thermomètre dans le rectum du bébé" /> </figure> <p>Inséré dans l’anus (ou rectum) pour prise de température rectale chez les bébés et tout petits de moins de trois ans.<br></p></li><li> <figure><span class="asset-image-title">Prise de la température buccale</span><img src="https://assets.aboutkidshealth.ca/akhassets/IMD_temperature_oral_FR.jpg" alt="Une fille couchée sous une couverture avec un thermomètre dans la bouche" /> </figure> <p>Placé dans la bouche (pour prise de température buccale) chez les enfants plus âgés, capables de garder le thermomètre dans leur bouche assez longtemps.</p></li></ul><p>​D’autres méthodes de prise de température peuvent être parfois utiles, mais le résultat est moins fiable. En voici quelques-unes :​</p><ul class="akh-steps"><li> <figure><span class="asset-image-title">Prise de la température axillaire (sous l'aisselle)</span><img src="https://assets.aboutkidshealth.ca/akhassets/IMD_temperature_armpit_FR.jpg" alt="Un bébé allongé sur son dos avec un thermomètre sous l'aisselle" /> </figure> <p>Placer un thermomètre sous l’aisselle (méthode axillaire)</p></li><li> <figure><span class="asset-image-title">Prise de la température auriculaire (dans l’oreille)</span><img src="https://assets.aboutkidshealth.ca/akhassets/IMD_temperature_ear_FR.jpg" alt="Garçon regardant droit devant lui lorsque quelqu'un tire le haut de son oreille et tient le thermomètre là-dedans" /> </figure> <p>Placer un thermomètre dans l’oreille (méthode auriculaire ou tympanique)</p> <br> </li></ul><p>Ne pas placer un thermomètre sur le front ou utiliser un thermomètre sucette, car ces méthodes ne sont pas fiables.​</p><h3>La fièvre chez les bébés de moins de 3 mois</h3><p>Si votre bébé a moins de 3 mois et a de la fièvre, consultez un médecin immédiatement.</p><p>Pour un bébé de moins d’un mois, la fièvre peut être le symptôme d’une infection grave. Si cela arrive durant la fin de semaine, n’attendez pas de voir votre médecin habituel; rendez-vous immédiatement au service d’urgence le plus proche pour faire examiner votre bébé. Ne donnez aucun médicament contre la fièvre à votre bébé sauf indication d’un médecin.</p><h2>Quand consulter un médecin?</h2> <h3>Rendez-vous chez le médecin de votre enfant, ou au service d’urgence le plus proche, immédiatement si votre enfant a de la fièvre et remplit l’une de ces conditions :</h3> <ul> <li>votre nourrisson a moins de 3 mois;</li> <li>vous êtes récemment revenus d’un voyage à l’étranger;</li> <li>l’enfant développe une irritation qui ressemble à des petits points violets qui ne disparaissent pas lorsque vous appuyez dessus avec vos doigts (blanchissement);</li> <li>l’enfant n’est pas capable de garder les liquides et semble déshydraté;</li> <li>la peau de l’enfant semble très pâle ou grise, ou est froide ou tachetée;</li> <li>l’enfant souffre constamment;</li> <li>l’enfant est léthargique (très faible) ou vous avez du mal à le réveiller;</li> <li>il a la nuque raide;</li> <li>il a eu une convulsion liée à la fièvre pour la première fois ou une convulsion de longue durée;</li> <li>il a l’air très malade;</li> <li>il semble confus ou il délire;</li> <li>il n’utilise pas un bras ou une jambe normalement ou refuse de se tenir debout;</li> <li>il a des difficultés à respirer;</li> <li>il pleure constamment et ne peut être calmé.</li> </ul> <h3>Consultez un médecin dans les 24 heures dans les cas suivants :</h3> <ul> <li>votre nourrisson a entre 3 et 6 mois.</li> <li>l’enfant a mal à un endroit précis, par exemple aux oreilles ou à la gorge, ce qui peut nécessiter un examen;</li> <li>l’enfant a de la fièvre depuis plus de trois jours;</li> <li>la fièvre a disparu pendant plus de 24 heures puis est revenue;</li> <li>l’enfant a une infection bactérienne traitée avec un antibiotique, mais la fièvre ne disparaît pas même après l’administration des antibiotiques pendant 2 ou 3 jours;</li> <li>il pleure quand il va aux toilettes;</li> <li>vous avez d’autres préoccupations ou questions.</li> </ul> <p>En cas d’incertitude, appelez Telehealth Ontario au 1-866-797-0000 (sans frais) si vous habitez en Ontario.</p> <h2>Quelques mythes à propos de la fièvre</h2> <p>Il existe de nombreux mythes au sujet de la fièvre; certains d’entre eux peuvent vous causer une inquiétude inutile. Si votre enfant a de la fièvre, le plus important est de surveiller son apparence et son comportement.</p> <h3>Mythe : la fièvre doit être soignée par des médicaments</h3> <p>Faux! La fièvre par elle-même n’est pas dangereuse et il n’est pas nécessaire de la soigner. La prise de médicaments est destinée à permettre à votre enfant de se sentir mieux en cas de fièvre. Si l’enfant se sent bien (à l’état éveillé ou en dormant) tout en ayant de la fièvre, il n’est pas nécessaire de lui donner des médicaments.</p> <h3>Mythe : le chiffre exact de la température est utile</h3> <p>Faux! Le plus important, avec un enfant fiévreux, est son apparence et son comportement, particulièrement s’il a pris des médicaments contre la fièvre. Par exemple, un enfant qui semble en santé, mais qui a une température élevée est moins inquiétant qu’un enfant qui n’a qu’une fièvre légère, mais semble très malade ou ne réagit pas. Certaines maladies virales mineures peuvent s’accompagner d’une fièvre élevée; certaines infections bactériennes graves peuvent être associées à une température corporelle anormalement basse. Dans tous les cas, il est recommandé de prendre la température de l’enfant et de noter depuis combien de jours dure la fièvre.</p> <h3>Mythe : la fièvre entraîne des lésions cérébrales</h3> <p>Faux! La plupart des fièvres associées aux infections sont de moins de 42°C (108°F); elles n’entraînent pas de lésions cérébrales. Seules les températures corporelles persistantes supérieures à 44°C (110°F) peuvent causer des lésions cérébrales. Ces températures corporelles élevées risquent davantage de se produire en raison d’un coup de chaleur ou à la suite de prise de certaines drogues illicites ou de certains médicaments, comme les anesthésiques ou d’autres médicaments utilisés en psychiatrie. Elles ne sont généralement pas causées par les infections habituelles des enfants.</p> <h3>Mythe : la fièvre est mauvaise pour l’enfant</h3> <p>Faux! La fièvre signifie simplement que le système immunitaire du corps a été activé. La fièvre aide à combattre les infections, car de nombreux germes ne survivent pas aussi bien à des températures corporelles légèrement plus élevées. En ce sens, la plupart des fièvres ont un effet bénéfique même si l’enfant est incommodé. Les médicaments sont principalement utilisés pour aider l’enfant à se sentir mieux.</p> <h3>Mythe : la fièvre répond toujours à la prise d’ibuprofène ou d’acétaminophène</h3> <p>Faux! Ces médicaments peuvent aider l’enfant à se sentir mieux, mais ne réduire la fièvre que de 1°C à 2°C (de 2°F à 3°F) seulement et ne pas faire revenir la température à la normale. Parfois, la fièvre persiste même après la prise d’ibuprofène ou d’acétaminophène.</p> <h3>Mythe : la fièvre répond rapidement aux antibiotiques</h3> <p>Faux! Les antibiotiques ne sont utiles que pour traiter des infections bactériennes. Ils commencent à combattre la bactérie aussitôt qu’ils sont administrés à votre enfant, mais la fièvre peut mettre 2 ou 3 jours à disparaître. Les antibiotiques n’ont aucun effet sur les infections virales. Chez les enfants, la plupart des infections sont causées par des virus; un antibiotique n’aura donc aucun effet sur elles.</p> <h3>Mythe : soigner la fièvre permet d’éviter les convulsions fébriles.</h3> <p>Faux! Le fait de soigner la fièvre n’empêchera pas les convulsions et vous ne devez pas utiliser de médicaments en ce sens. En général, il y a des antécédents familiaux de convulsions. Elles se produisent également plutôt au début d’une infection.</p>​​ <h2>Références</h2><p>Richardson M, Purssell E. (2015). Who's afraid of fever? <em>Arch Dis Child</em>. 100(9):818-20. doi:10.1136/archdischild-2015-309491. Retrieved on February 10th, 2016 <a href="http://adc.bmj.com/content/early/2015/05/14/archdischild-2014-307483.full.pdf+html">http://adc.bmj.com/content/early/2015/05/14/archdischild-2014-307483.full.pdf+html</a></p> <br> <p>Sullivan JE, Farrar HC. (2011). Fever and antipyretic use in children. <em>Pediatrics</em>.127(3):580-7. doi:10.1542/peds.2010-3852. Retrieved February 10th, 2016 <a href="http://pediatrics.aappublications.org/content/127/3/580.full-text.pdf">http://pediatrics.aappublications.org/content/127/3/580.full-text.pdf</a> </p> <br> <p>Mistry N, Hudak A. (2014). Combined and alternating acetaminophen and ibuprofen therapy for febrile children. <em>Paediatrics & Child Health</em>. 19(10):531-2. Retrieved on February 10th, 2016 <a href="http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4276386/pdf/pch-19-531.pdf">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4276386/pdf/pch-19-531.pdf​</a> and Corrigendum. (2015). <em>Paediatrics & Child Health</em>, 20(8), 466–467. Retrieved on February 10th, 2016 <a href="http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4699537/">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4699537/</a> </p> <br> <p>National Collaborating Centre for Women's and Children's Health (2013). <em>Feverish illness in children: assessment and initial management in children younger than 5 years</em> (2nd ed.). Sections 9.1 and 9.2. London, UK: Royal College of Obstetricians and Gynaecologists. Retrieved February 10th, 2016 <a href="https://www.ncbi.nlm.nih.gov/books/NBK327853/">https://www.ncbi.nlm.nih.gov/books/NBK327853/​</a><br></p> ​
FeverFFeverFeverEnglishNAChild (0-12 years);Teen (13-18 years)BodyImmune systemConditions and diseasesCaregivers Adult (19+)Fever2016-04-27T04:00:00ZElana Hochstadter, MD;Tania Principi, MD, FRCPC, MSc10.000000000000051.00000000000001966.00000000000Health (A-Z) - ConditionsHealth A-Z<p>A fever can be a sign that the body is fighting an infection. Learn how to properly care for an infant or child with a fever.</p><p>A fever can be a sign that the body is fighting an infection. When the body's defense (immune) system is activated by a bacteria or a virus, many reactions occur in the body. Fever is one sign of these reactions. Fever is not a disease or illness itself but a signal that something is going on in the body. How your child looks and acts are more important than how high the fever is.</p><h2>Key points</h2> <ul> <li>Fever is usually a sign that the body is fighting an infection.</li> <li>A temperature of 38°C (100.4°F) or higher means a fever. </li> <li>See your doctor right away if your child has a temperature that last three days or if your child has a temperature and is less than three months old.</li> <li>Pay attention to how your child looks and acts. Keep a record of the number of days of fever.</li> <li>To keep your child comfortable, dress your child lightly. Give your child lots of fluids to drink, and give acetaminophen or ibuprofen if it seems to make your child feel better.</li> </ul> <h2>What to expect when your child has a fever</h2> <p>Fevers can go up and down on their own without medication. Fevers can make children feel uncomfortable. </p> <ul> <li>When symptoms are mild, your child may be slightly cranky or have aches and pains. Some children are less active and sleepier. They may not be interested in eating or drinking.</li> <li>Some fevers may be associated with shaking (chills or rigors) as the body temperature is changing. This type of shaking is one way for the body to try to regulate the temperature. It is not a seizure or convulsion, and is not associated with changes in the child's level of consciousness.</li> <li>Approximately 5% of children between the ages of six months and six years may have <a href="/Article?contentid=1&language=English">febrile seizures</a>. They are episodes called a seizure or convulsion associated with a fever. Your child should see a doctor after a febrile seizure, but febrile seizures are generally not dangerous.</li> </ul> <p>The type of infection causing the fever usually determines how often the fever recurs and how long the fever lasts. Fevers due to viruses can last for as little as two to three days and sometime as long as two weeks. A fever caused by a bacterial infection may continue until the child is treated with an antibiotic.</p> <h2>What causes fever?</h2> <p>Many different infections can cause a fever. To find out what is causing your child's fever, the doctor will look at other signs or symptoms of the illness, not the fever itself. How high a fever is does not help the doctor to decide whether an infection is mild or severe, or whether an infection is from a bacteria or a virus.</p> <p>It is important to know how many days of fever your child has had. You should keep a record of your child's fevers so that you can accurately tell the doctor how long the fever has been present.</p> <h3>Fever may also be caused by other conditions</h3> <ul> <li>A mild increase in body temperature can occur with exercise or too much clothing, after a hot bath or shower, or in hot weather.</li> <li>Rarely, <a href="/Article?contentid=1915&language=English">heat stroke</a> or exposure to certain medications or drugs can cause a severe and possibly dangerous increase in body temperature.</li> <li><a href="/Article?contentid=1986&language=English">Vaccinations</a> can cause fever. </li> <li>Some non-infectious illnesses and inflammatory conditions can cause recurrent or persistent fevers. </li> </ul> <h3>Teething does not cause fever</h3> <p>Many people believe that <a href="/Article?contentid=304&language=English">teething</a> causes fever. Research shows us that teething does not cause real fever. If your baby has a fever, do not assume it is due to teething.</p> <h2>Does my child have a fever?</h2><h3>A temperature of 38°C (100.4°F) or higher is a fever</h3><p>Children often feel warm to the touch when they have a fever. To confirm that your child has a fever, use a thermometer to measure your child's body temperature. A temperature of 38°C (100.4°F) or higher means that your child has a fever.</p><h3>Measuring your child’s temperature</h3><p>Do NOT use a glass thermom​eter which contains mercury.</p><p>The <a href="/Article?contentid=966&language=English">most accurate way to measure temperature</a> is with a thermometer:</p><ul class="akh-steps"><li> <figure> <span class="asset-image-title">How to measure a rectal temperature</span> <img src="https://assets.aboutkidshealth.ca/akhassets/IMD_temperature_rectal_EN.jpg" alt="Baby lying on tummy across a lap with thermometer inserted in the baby's rectum" /> </figure> <p>inserted into the anus or rectum (rectal temperature) in babies and children under three years of age</p></li><li> <figure> <span class="asset-image-title">How to measure an oral temperature</span><img src="https://assets.aboutkidshealth.ca/akhassets/IMD_temperature_oral_EN.jpg" alt="Young girl lying under a blanket while her temperature is taken by mouth" /> </figure> <p>placed in the mouth (oral temperature) in older children able to hold the thermometer in their mouth long enough</p></li></ul><p>Other methods of measuring temperature may sometimes be useful but less accurate. These methods include: </p><ul class="akh-steps"><li> <figure> <span class="asset-image-title">How to measure an armpit (axillary) temperature</span><img src="https://assets.aboutkidshealth.ca/akhassets/IMD_temperature_armpit_EN.jpg" alt="Baby lying on their back with a thermometer held under the armpit" /> </figure> <p>using a thermometer in the armpit (axillary temperature)</p></li><li> <figure> <span class="asset-image-title">How to measure an ear (tympanic) temperature</span><img src="https://assets.aboutkidshealth.ca/akhassets/IMD_temperature_ear_EN.jpg" alt="Boy having his temperature taken by ear with one hand holding the ear up and the other holding the thermometer in the ear" /> </figure> <p>using an ear thermometer (tympanic temperature)</p></li></ul><p>You should avoid using a thermometer on the forehead or pacifier thermometer to check a temperature because they are inaccurate.</p><h3>Fever in babies younger than three months</h3><p>If your baby is less than three months old and has a fever, you need to see a doctor immediately.</p><p>For babies less than one month of age, fever may be a sign of a serious infection. If this happens on the weekend, do not wait to see your doctor; go to the nearest Emergency Department right away to have your baby assessed by a doctor. Do not give any fever medication to your baby unless a doctor says so.​<br></p><h2>When to see a doctor</h2> <h3>See your child's regular doctor or go to the nearest Emergency Department right away if your child has a fever and: </h3> <ul> <li>Your child is less than three months old.</li> <li>You have recently returned from travelling abroad. </li> <li>Your child develops a rash that looks like small purple dots that do not go away when you apply pressure with your fingers (blanching). </li> <li>Your child is not able to keep down any fluids, is not peeing and appears dehydrated. </li> <li>Your child's skin looks very pale or grey, or is cool or mottled. </li> <li>Your child is in constant pain. </li> <li>Your child is lethargic (very weak) or difficult to wake up. </li> <li>Your child has a stiff neck. </li> <li>Your child has a seizure associated with fever for the first time or a long seizure associated with fever. </li> <li>Your child is looking or acting very sick. </li> <li>Your child seems confused or delirious.</li> <li>Your child does not use their arm or leg normally or refuses to stand up. </li> <li>Your child has problems breathing. </li> <li>Your child cries constantly and cannot be settled. </li> </ul> <h3>See a doctor within 24 hours if your child has a fever and: </h3> <ul> <li>Your child is between three and six months old.</li> <li>Your child has specific pain, such as ear or throat pain that may require evaluation.</li> <li>Your child has had a fever for more than three days. </li> <li>The fever went away for over 24 hours and then came back. </li> <li>Your child has a bacterial infection that is being treated with an antibiotic, but the fever is not going away after two to three days of starting the antibiotic. </li> <li>Your child cries when going to the bathroom. </li> <li>You have other concerns or questions. </li> </ul> <p>If you are unsure, call Telehealth Ontario at 1-866-797-0000 (toll-free number) if you live in Ontario.</p> <h2>Myths about fever</h2> <p>There are many myths about fever, and some of these myths may make you worry unnecessarily. If your child has a fever, the most important thing is how your child looks and acts. </p> <h3>Myth: Fever needs to be treated with medication</h3> <p>This is wrong! The fever itself is not dangerous and does not need to be treated. Medication should be used to make your child more comfortable when they have a fever. If your child is comfortable with a fever (either awake or sleeping) you do not need to give them fever medication. </p> <h3>Myth: The exact number of the temperature is useful</h3> <p>That is wrong! The most important part of assessing a child with fever is how the child looks and acts, especially after treating the fever with medication. For example a child who appears well but has a high temperature is less concerning than a child who only has a mild fever, but who appears quite unwell or unresponsive. Some minor viral illnesses may trigger high fevers; some serious bacterial infections may be associated with an abnormally low body temperature. In any case, you should measure your child’s temperature so you can keep a record of the number of days of fever.</p> <h3>Myth: Fevers cause brain damage</h3> <p>That is wrong! Most fevers associated with infections are less than 42°C (108°F). These fevers do not cause brain damage. Only a persistent body temperature greater than 44°C (110°F) can cause brain damage. These body temperatures are more likely to occur with heat stroke or after exposure to certain street drugs or medications, such as anaesthetic or some psychiatric medicines. They do not occur with the usual infections that children can have. </p> <h3>Myth: Fevers are bad for children</h3> <p>That is wrong! A fever is just a sign that the body's immune system has been activated. Fevers help to fight infections because many germs do not survive as well at slightly higher body temperatures. Thus most fevers have a beneficial effect despite your child’s discomfort. The main reason to use medication is to make the child feel better. </p> <h3>Myth: Fevers should always respond to ibuprofen or acetaminophen</h3> <p>That is wrong! These medications helps make children feel more comfortable but may only reduce the fever by 1°C to 2°C (2°F to 3°F) and may not bring the temperature down to normal. Sometimes a fever continues even after giving ibuprofen or acetaminophen.</p> <h3>Myth: Fevers should respond quickly to antibiotics </h3> <p>That is wrong! Antibiotics are only useful in treating bacterial infections. The antibiotic will start working to fight the bacteria as soon as your child takes it, but it may take two to three days before the fever goes away. Antibiotics have no effect on viral infections. Since most infections in children are caused by viruses, an antibiotic will be of no use. </p> <h3>Myth: Treating the fever will prevent febrile seizures </h3> <p>This is wrong! Treating the fever will not prevent febrile convulsions and you should not use medications for this purpose. Febrile seizures usually run in families and are more likely to happen at the beginning of your child’s infection.</p>​​ <h2>References</h2><p>Richardson M, Purssell E. (2015). Who's afraid of fever? <em>Arch Dis Child</em>. 100(9):818-20. doi:10.1136/archdischild-2015-309491. Retrieved on February 10th, 2016 <a href="http://adc.bmj.com/content/early/2015/05/14/archdischild-2014-307483.full.pdf+html">http://adc.bmj.com/content/early/2015/05/14/archdischild-2014-307483.full.pdf+html</a></p> <br> <p>Sullivan JE, Farrar HC. (2011). Fever and antipyretic use in children. <em>Pediatrics</em>.127(3):580-7. doi:10.1542/peds.2010-3852. Retrieved February 10th, 2016 <a href="http://pediatrics.aappublications.org/content/127/3/580.full-text.pdf">http://pediatrics.aappublications.org/content/127/3/580.full-text.pdf</a> </p> <br> <p>Mistry N, Hudak A. (2014). Combined and alternating acetaminophen and ibuprofen therapy for febrile children. <em>Paediatrics & Child Health</em>. 19(10):531-2. Retrieved on February 10th, 2016 <a href="http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4276386/pdf/pch-19-531.pdf">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4276386/pdf/pch-19-531.pdf​</a> and Corrigendum. (2015). <em>Paediatrics & Child Health</em>, 20(8), 466–467. Retrieved on February 10th, 2016 <a href="http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4699537/">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4699537/</a> </p> <br> <p>National Collaborating Centre for Women's and Children's Health (2013). <em>Feverish illness in children: assessment and initial management in children younger than 5 years</em> (2nd ed.). Sections 9.1 and 9.2. London, UK: Royal College of Obstetricians and Gynaecologists. Retrieved February 10th, 2016 <a href="https://www.ncbi.nlm.nih.gov/books/NBK327853/">https://www.ncbi.nlm.nih.gov/books/NBK327853/</a><br></p> ​
الحمىاالحمىFeverArabicNAChild (0-12 years);Teen (13-18 years)BodyImmune systemConditions and diseasesCaregivers Adult (19+)Fever2009-10-16T04:00:00ZTrent Mizzi, MD, BSc, FRCPC10.000000000000051.00000000000001966.00000000000Flat ContentHealth A-Z<p>علامات واعراض الحمى و كيفيه قياس درجة حرارة الجسم. الحمى هي علامة واحدة من تفاعلات الجسم قبل جرثومة او فيروساقرأ عن .<br></p>
FebreFFebreFeverPortugueseNAChild (0-12 years);Teen (13-18 years)NANANAAdult (19+)NA2009-10-16T04:00:00ZTrent Mizzi, MD, BSc, FRCPC51.000000000000010.00000000000001966.00000000000Flat ContentHealth A-Z<p>Febre em crianças: a temperatura elevada pode ser um sinal de febre infantil. Conheça quais são os sinais e os medicamentos para a febre em crianças.</p>
ਬੁਖ਼ਾਰਬੁਖ਼ਾਰFeverPunjabiNAChild (0-12 years);Teen (13-18 years)NANANAAdult (19+)NA2009-10-16T04:00:00ZTrent Mizzi, MD, BSc, FRCPC000Flat ContentHealth A-Z<p>ਬੁਖ਼ਾਰ ਦੀਆਂ ਨਿਸ਼ਾਨੀਆਂ, ਕਾਰਨਾਂ, ਮਿਆਦ ਅਤੇ ਉਚਿੱਤ ਇਲਾਜ ਬਾਰੇ ਪੜ੍ਹੋ। ਬਿਮਾਰ ਬੱਚਿਆਂ ਦੇ ਹਸਪਤਾਲ ਵੱਲੋਂ ਵਿਸ਼ਵਾਸਯੋਗ ਉੱਤਰ।</p>
FiebreFFiebreFeverSpanishNAChild (0-12 years);Teen (13-18 years)NANANAAdult (19+)NA2009-10-16T04:00:00ZTrent Mizzi, MD, BSc, FRCPC000Flat ContentHealth A-Z<p>Tener fiebre significa que el cuerpo está luchando contra una infección. Lea consejos sobre como bajar la fiebre en niños y los síntomas de fiebre normales.</p>
காய்ச்சல்காய்ச்சல்FeverTamilNAChild (0-12 years);Teen (13-18 years)NANANAAdult (19+)NA2009-10-16T04:00:00ZTrent Mizzi, MD, BSc, FRCPC000Flat ContentHealth A-Z<p>பிள்ளையின் அதிக காய்ச்சலின் அறிகுறிகள் மற்றும் காரணங்கள் பற்றியும்.</p>
بخارببخارFeverUrduNAChild (0-12 years);Teen (13-18 years)NANANAAdult (19+)NA2009-10-16T04:00:00ZTrent Mizzi, MD, BSc, FRCPC51.000000000000010.00000000000001966.00000000000Flat ContentHealth A-Zبچوں میں تیز بخار کی علامات اور وجوہات، وقفے اور اپنے بچے کے تیز بخار کے مناسب علاج کے بارے میں پڑھیں۔

 

 

Fever30.0000000000000FeverFeverFEnglishNAChild (0-12 years);Teen (13-18 years)BodyImmune systemConditions and diseasesCaregivers Adult (19+)Fever2016-04-27T04:00:00ZElana Hochstadter, MD;Tania Principi, MD, FRCPC, MSc10.000000000000051.00000000000001966.00000000000Health (A-Z) - ConditionsHealth A-Z<p>A fever can be a sign that the body is fighting an infection. Learn how to properly care for an infant or child with a fever.</p><p>A fever can be a sign that the body is fighting an infection. When the body's defense (immune) system is activated by a bacteria or a virus, many reactions occur in the body. Fever is one sign of these reactions. Fever is not a disease or illness itself but a signal that something is going on in the body. How your child looks and acts are more important than how high the fever is.</p><h2>Key points</h2> <ul> <li>Fever is usually a sign that the body is fighting an infection.</li> <li>A temperature of 38°C (100.4°F) or higher means a fever. </li> <li>See your doctor right away if your child has a temperature that last three days or if your child has a temperature and is less than three months old.</li> <li>Pay attention to how your child looks and acts. Keep a record of the number of days of fever.</li> <li>To keep your child comfortable, dress your child lightly. Give your child lots of fluids to drink, and give acetaminophen or ibuprofen if it seems to make your child feel better.</li> </ul> <h2>What to expect when your child has a fever</h2> <p>Fevers can go up and down on their own without medication. Fevers can make children feel uncomfortable. </p> <ul> <li>When symptoms are mild, your child may be slightly cranky or have aches and pains. Some children are less active and sleepier. They may not be interested in eating or drinking.</li> <li>Some fevers may be associated with shaking (chills or rigors) as the body temperature is changing. This type of shaking is one way for the body to try to regulate the temperature. It is not a seizure or convulsion, and is not associated with changes in the child's level of consciousness.</li> <li>Approximately 5% of children between the ages of six months and six years may have <a href="/Article?contentid=1&language=English">febrile seizures</a>. They are episodes called a seizure or convulsion associated with a fever. Your child should see a doctor after a febrile seizure, but febrile seizures are generally not dangerous.</li> </ul> <p>The type of infection causing the fever usually determines how often the fever recurs and how long the fever lasts. Fevers due to viruses can last for as little as two to three days and sometime as long as two weeks. A fever caused by a bacterial infection may continue until the child is treated with an antibiotic.</p> <h2>What causes fever?</h2> <p>Many different infections can cause a fever. To find out what is causing your child's fever, the doctor will look at other signs or symptoms of the illness, not the fever itself. How high a fever is does not help the doctor to decide whether an infection is mild or severe, or whether an infection is from a bacteria or a virus.</p> <p>It is important to know how many days of fever your child has had. You should keep a record of your child's fevers so that you can accurately tell the doctor how long the fever has been present.</p> <h3>Fever may also be caused by other conditions</h3> <ul> <li>A mild increase in body temperature can occur with exercise or too much clothing, after a hot bath or shower, or in hot weather.</li> <li>Rarely, <a href="/Article?contentid=1915&language=English">heat stroke</a> or exposure to certain medications or drugs can cause a severe and possibly dangerous increase in body temperature.</li> <li><a href="/Article?contentid=1986&language=English">Vaccinations</a> can cause fever. </li> <li>Some non-infectious illnesses and inflammatory conditions can cause recurrent or persistent fevers. </li> </ul> <h3>Teething does not cause fever</h3> <p>Many people believe that <a href="/Article?contentid=304&language=English">teething</a> causes fever. Research shows us that teething does not cause real fever. If your baby has a fever, do not assume it is due to teething.</p> <h2>Does my child have a fever?</h2><h3>A temperature of 38°C (100.4°F) or higher is a fever</h3><p>Children often feel warm to the touch when they have a fever. To confirm that your child has a fever, use a thermometer to measure your child's body temperature. A temperature of 38°C (100.4°F) or higher means that your child has a fever.</p><h3>Measuring your child’s temperature</h3><p>Do NOT use a glass thermom​eter which contains mercury.</p><p>The <a href="/Article?contentid=966&language=English">most accurate way to measure temperature</a> is with a thermometer:</p><ul class="akh-steps"><li> <figure> <span class="asset-image-title">How to measure a rectal temperature</span> <img src="https://assets.aboutkidshealth.ca/akhassets/IMD_temperature_rectal_EN.jpg" alt="Baby lying on tummy across a lap with thermometer inserted in the baby's rectum" /> </figure> <p>inserted into the anus or rectum (rectal temperature) in babies and children under three years of age</p></li><li> <figure> <span class="asset-image-title">How to measure an oral temperature</span><img src="https://assets.aboutkidshealth.ca/akhassets/IMD_temperature_oral_EN.jpg" alt="Young girl lying under a blanket while her temperature is taken by mouth" /> </figure> <p>placed in the mouth (oral temperature) in older children able to hold the thermometer in their mouth long enough</p></li></ul><p>Other methods of measuring temperature may sometimes be useful but less accurate. These methods include: </p><ul class="akh-steps"><li> <figure> <span class="asset-image-title">How to measure an armpit (axillary) temperature</span><img src="https://assets.aboutkidshealth.ca/akhassets/IMD_temperature_armpit_EN.jpg" alt="Baby lying on their back with a thermometer held under the armpit" /> </figure> <p>using a thermometer in the armpit (axillary temperature)</p></li><li> <figure> <span class="asset-image-title">How to measure an ear (tympanic) temperature</span><img src="https://assets.aboutkidshealth.ca/akhassets/IMD_temperature_ear_EN.jpg" alt="Boy having his temperature taken by ear with one hand holding the ear up and the other holding the thermometer in the ear" /> </figure> <p>using an ear thermometer (tympanic temperature)</p></li></ul><p>You should avoid using a thermometer on the forehead or pacifier thermometer to check a temperature because they are inaccurate.</p><h3>Fever in babies younger than three months</h3><p>If your baby is less than three months old and has a fever, you need to see a doctor immediately.</p><p>For babies less than one month of age, fever may be a sign of a serious infection. If this happens on the weekend, do not wait to see your doctor; go to the nearest Emergency Department right away to have your baby assessed by a doctor. Do not give any fever medication to your baby unless a doctor says so.​<br></p><h2>Taking care of your child with a fever</h2> <h3>Clothing</h3> <p>Keep your child lightly dressed. Most body heat is lost through the skin, so overdressing or bundling your child may result in a higher fever and can make your child more uncomfortable. If your child is having chills or shivers, give them a light blanket. Keep the room temperature at a level that is comfortable for you, when lightly dressed.</p> <h3>Extra fluids</h3> <p>Fever will make your child's body lose some fluid (liquid), so encourage your child to drink extra fluids to avoid <a href="/Article?contentid=776&language=English">dehydration</a>. Whether you give your child cold or warm drinks does not matter. However, cool water or drinks may help your child feel more comfortable.</p> <h3>Sponging</h3> <p>Sponging is unnecessary to help lower body temperature and may make your child more uncomfortable. Sponging may just cool the outside of your child's body and cause them to shiver without really affecting the internal body temperature. Only use sponging in an emergency, such as heat stroke.</p> <h3>Medication</h3> <p>You should use medication to keep your child comfortable. You should not base your judgment on how high the fever but rather on how your child is feeling. Medication may only reduce the fever by 1°C to 2°C (2°F to 3°F) and may not bring the temperature down to normal.</p> <p>Fevers may also cycle up and down on their own, so it is difficult to tell whether a fever is reduced because of medication or because of the natural fever pattern. If your child is sleeping comfortably, it is not necessary to wake them up to give medications. </p> <h3>Two types of medication are usually recommended for managing fever</h3> <p>They are:</p> <ul> <li><a href="/Article?contentid=62&language=English">acetaminophen</a></li> <li><a href="/Article?contentid=153&language=English">ibuprofen</a></li> </ul> <p>Both drugs are available in tablets, capsules and liquid formulations of various strengths. Acetaminophen is also available as a rectal suppository. Do not put a tablet intended for the mouth into a child's rectum.</p> <p>Your doctor or pharmacist can help you decide on the most appropriate formulation and dose for your child. The correct dose for a child is based on body weight. An estimated dose is usually provided on the medication package. Note that acetaminophen and ibuprofen have different doses and different lengths of time between doses. </p> <p>These drugs can make your child more comfortable, but they do not treat the underlying cause of the fever. Acetaminophen and ibuprofen do not interact with each other. They may be equally effective in lowering a temperature. Keep track of when you have given any medication. You should not routinely alternate between acetaminophen and ibuprofen.</p> <p>If your child has a pre-existing medical condition or is already taking other medicines, talk to your child's doctor to make sure that acetaminophen or ibuprofen is safe for your child. </p> <h3>Do not use ASA (Aspirin) to treat your child's fever </h3> <p>Although rare, <a href="/Article?contentid=77&language=English">ASA (acetylsalicylic acid or Aspirin)</a> has been linked to a severe condition called Reye's syndrome. Do not give ASA to a child to manage a fever unless your doctor has specifically told you to do so. You may need to check the label of other medication or ask your pharmacist to make sure that they do not contain ASA. </p><h2>When to see a doctor</h2> <h3>See your child's regular doctor or go to the nearest Emergency Department right away if your child has a fever and: </h3> <ul> <li>Your child is less than three months old.</li> <li>You have recently returned from travelling abroad. </li> <li>Your child develops a rash that looks like small purple dots that do not go away when you apply pressure with your fingers (blanching). </li> <li>Your child is not able to keep down any fluids, is not peeing and appears dehydrated. </li> <li>Your child's skin looks very pale or grey, or is cool or mottled. </li> <li>Your child is in constant pain. </li> <li>Your child is lethargic (very weak) or difficult to wake up. </li> <li>Your child has a stiff neck. </li> <li>Your child has a seizure associated with fever for the first time or a long seizure associated with fever. </li> <li>Your child is looking or acting very sick. </li> <li>Your child seems confused or delirious.</li> <li>Your child does not use their arm or leg normally or refuses to stand up. </li> <li>Your child has problems breathing. </li> <li>Your child cries constantly and cannot be settled. </li> </ul> <h3>See a doctor within 24 hours if your child has a fever and: </h3> <ul> <li>Your child is between three and six months old.</li> <li>Your child has specific pain, such as ear or throat pain that may require evaluation.</li> <li>Your child has had a fever for more than three days. </li> <li>The fever went away for over 24 hours and then came back. </li> <li>Your child has a bacterial infection that is being treated with an antibiotic, but the fever is not going away after two to three days of starting the antibiotic. </li> <li>Your child cries when going to the bathroom. </li> <li>You have other concerns or questions. </li> </ul> <p>If you are unsure, call Telehealth Ontario at 1-866-797-0000 (toll-free number) if you live in Ontario.</p> <h2>Myths about fever</h2> <p>There are many myths about fever, and some of these myths may make you worry unnecessarily. If your child has a fever, the most important thing is how your child looks and acts. </p> <h3>Myth: Fever needs to be treated with medication</h3> <p>This is wrong! The fever itself is not dangerous and does not need to be treated. Medication should be used to make your child more comfortable when they have a fever. If your child is comfortable with a fever (either awake or sleeping) you do not need to give them fever medication. </p> <h3>Myth: The exact number of the temperature is useful</h3> <p>That is wrong! The most important part of assessing a child with fever is how the child looks and acts, especially after treating the fever with medication. For example a child who appears well but has a high temperature is less concerning than a child who only has a mild fever, but who appears quite unwell or unresponsive. Some minor viral illnesses may trigger high fevers; some serious bacterial infections may be associated with an abnormally low body temperature. In any case, you should measure your child’s temperature so you can keep a record of the number of days of fever.</p> <h3>Myth: Fevers cause brain damage</h3> <p>That is wrong! Most fevers associated with infections are less than 42°C (108°F). These fevers do not cause brain damage. Only a persistent body temperature greater than 44°C (110°F) can cause brain damage. These body temperatures are more likely to occur with heat stroke or after exposure to certain street drugs or medications, such as anaesthetic or some psychiatric medicines. They do not occur with the usual infections that children can have. </p> <h3>Myth: Fevers are bad for children</h3> <p>That is wrong! A fever is just a sign that the body's immune system has been activated. Fevers help to fight infections because many germs do not survive as well at slightly higher body temperatures. Thus most fevers have a beneficial effect despite your child’s discomfort. The main reason to use medication is to make the child feel better. </p> <h3>Myth: Fevers should always respond to ibuprofen or acetaminophen</h3> <p>That is wrong! These medications helps make children feel more comfortable but may only reduce the fever by 1°C to 2°C (2°F to 3°F) and may not bring the temperature down to normal. Sometimes a fever continues even after giving ibuprofen or acetaminophen.</p> <h3>Myth: Fevers should respond quickly to antibiotics </h3> <p>That is wrong! Antibiotics are only useful in treating bacterial infections. The antibiotic will start working to fight the bacteria as soon as your child takes it, but it may take two to three days before the fever goes away. Antibiotics have no effect on viral infections. Since most infections in children are caused by viruses, an antibiotic will be of no use. </p> <h3>Myth: Treating the fever will prevent febrile seizures </h3> <p>This is wrong! Treating the fever will not prevent febrile convulsions and you should not use medications for this purpose. Febrile seizures usually run in families and are more likely to happen at the beginning of your child’s infection.</p>​​ <h2>References</h2><p>Richardson M, Purssell E. (2015). Who's afraid of fever? <em>Arch Dis Child</em>. 100(9):818-20. doi:10.1136/archdischild-2015-309491. Retrieved on February 10th, 2016 <a href="http://adc.bmj.com/content/early/2015/05/14/archdischild-2014-307483.full.pdf+html">http://adc.bmj.com/content/early/2015/05/14/archdischild-2014-307483.full.pdf+html</a></p> <br> <p>Sullivan JE, Farrar HC. (2011). Fever and antipyretic use in children. <em>Pediatrics</em>.127(3):580-7. doi:10.1542/peds.2010-3852. Retrieved February 10th, 2016 <a href="http://pediatrics.aappublications.org/content/127/3/580.full-text.pdf">http://pediatrics.aappublications.org/content/127/3/580.full-text.pdf</a> </p> <br> <p>Mistry N, Hudak A. (2014). Combined and alternating acetaminophen and ibuprofen therapy for febrile children. <em>Paediatrics & Child Health</em>. 19(10):531-2. Retrieved on February 10th, 2016 <a href="http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4276386/pdf/pch-19-531.pdf">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4276386/pdf/pch-19-531.pdf​</a> and Corrigendum. (2015). <em>Paediatrics & Child Health</em>, 20(8), 466–467. Retrieved on February 10th, 2016 <a href="http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4699537/">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4699537/</a> </p> <br> <p>National Collaborating Centre for Women's and Children's Health (2013). <em>Feverish illness in children: assessment and initial management in children younger than 5 years</em> (2nd ed.). Sections 9.1 and 9.2. London, UK: Royal College of Obstetricians and Gynaecologists. Retrieved February 10th, 2016 <a href="https://www.ncbi.nlm.nih.gov/books/NBK327853/">https://www.ncbi.nlm.nih.gov/books/NBK327853/</a><br></p> ​https://assets.aboutkidshealth.ca/AKHAssets/fever.jpgfeverFalse

Nous tenons à remercier nos commanditaires

AboutKidsHealth est fier de collaborer avec les commanditaires suivants, qui nous aident à accomplir notre mission, qui consiste à améliorer la santé et le mieux-être des enfants canadiens et étrangers, en leur donnant accès sur Internet à des renseignements sur les soins de santé.