Poison ivyPPoison ivyPoison ivyEnglishDermatologyChild (0-12 years);Teen (13-18 years)SkinSkinConditions and diseasesCaregivers Adult (19+)Rash2014-05-21T04:00:00ZShawna Silver, MD, FRCPC, FAAP, PEng6.1000000000000075.8000000000000801.000000000000Health (A-Z) - ConditionsHealth A-Z<p>Learn how to recognize a poison ivy plant, prevent rashes and how to treat the rash if your child is exposed.</p><p>Poison ivy is a plant that grows at sea level in moist shady regions east of the Mississippi River. It can cause a rash when it makes contact with the skin (contact dermatitis). The rash occurs when the skin reacts to substances in the oily sap (called urushiol) in the plant's roots, stems and leaves.<br></p><h2>Key points</h2><ul><li>Poison ivy is a plant that can cause a rash when it makes contact with the skin.<br></li><li>Each leaf has three leaflets that can be shiny, smooth and hairless, or rough, hairy and velvety.</li><li>The rash is caused by oily sap in the plant's roots, stems and leaves.<br></li><li>To prevent poison ivy rash, stay away from the plant and wear protective clothing. A helpful rule for avoiding poison ivy is "leaves of three, leave them be".</li><li>Wash exposed skin and clothing thoroughly. This may help to prevent a reaction.</li><li>The rash should go away after a few weeks. Mild rashes can be treated with antihistamines. Very severe rashes might require steroids.</li><li>See your doctor if your child develops a <a href="/article?contentid=30&language=English">fever</a> or if the area around the rash becomes redder or swollen or has a milky discharge.</li></ul><h2>Signs and symptoms of a poison ivy rash</h2><p>The symptoms of a poison ivy rash may include:</p><ul><li>redness</li><li>extreme itching</li><li> <a href="/Article?contentid=789&language=English">hives</a></li><li>swelling</li><li>small or large blisters, often forming a line or streak</li><li>crusting skin</li></ul><p>The typical rash can last from one to three weeks.<br></p><p>The rash usually occurs on skin surfaces that are exposed directly to poison ivy. People can also be exposed to poison ivy's oily sap through indirect contact, including:</p><ul><li>scratching or rubbing, which moves the sap to other skin areas</li><li>contact with clothing, a pet, tools, sports equipment or other things that may have come into contact with the plant.</li></ul><p>If poison ivy is burned, the sap can cling to smoke particles and become airborne. This can cause reactions involving the skin, the eyes or the <a href="https://pie.med.utoronto.ca/htbw/module.html?module=lung-child">lungs</a>.</p><h2>How to treat a poison ivy rash</h2><h3>Mild rash</h3><ul><li>Place cool cloths on your child's skin.</li><li>Have your child take cool showers or lukewarm baths.</li><li>Give your child an antihistamine.</li></ul><p>Try not to let your child scratch. This can cause infection and scarring and may spread the sap to other parts of the body. If the rash is very severe, your child may need to take steroid medication by mouth.</p><p>Reactions may vary from person to person. Some people may not react to poison ivy at all, while others may have a very severe reaction.</p><h3>Signs of a serious reaction to poison ivy<br></h3><p>Your child has a serious reaction if:</p><ul><li>nothing helps to ease the itch</li><li>the skin around the rash seems to be infected</li><li>they develop a <a href="/article?contentid=30&language=English">fever</a></li><li>the rash appears on their eyelids, lips, face or genitals</li><li>their face swells</li></ul><h2>When to see a doctor</h2><p>See a doctor if your child:</p><ul><li>develops a <a href="/Article?contentid=801&language=English">skin infection</a> (increasing redness, swelling, pain or a milky discharge from the irritated areas)</li><li>is not responding to any of the treatments for a mild rash.</li></ul><p>Take your child to your nearest hospital emergency department right away if they are having trouble breathing or swallowing.</p>
Herbe à puce (sumac vénéneux)HHerbe à puce (sumac vénéneux)Poison ivyFrenchDermatologyChild (0-12 years);Teen (13-18 years)SkinSkinConditions and diseasesCaregivers Adult (19+)Rash2014-05-21T04:00:00ZShawna Silver, MD, FRCPC, FAAP, PEng6.0000000000000076.0000000000000778.000000000000Health (A-Z) - ConditionsHealth A-Z<p>Apprenez à reconnaître l’herbe à puce, à prévenir les éruptions et à les traiter si votre enfant est entré en contact avec cette plante.</p><p>L’herbe à puce, aussi appelée sumac vénéneux, est une plante qui pousse au niveau de la mer, dans les zones humides ombragées situées à l’est de la rivière Mississippi. Elle peut causer une éruption cutanée quand elle entre en contact avec la peau (on parle alors de dermite ou de dermatite de contact). L’éruption survient quand la peau réagit aux substances présentes dans la sève huileuse (du nom d’urushiol) des racines, des tiges et des feuilles de la plante.</p><h2>À retenir</h2> <ul><li>L’herbe à puce est une plante qui peut causer une éruption cutanée si elle est en contact avec la peau.</li> <li>Chacune de ses feuilles comporte trois folioles (c’est-à-dire qu’elles sont découpées en trois petites feuilles) qui peuvent être brillantes, lisses et dépourvues de poil ou rugueuses, velues et veloutées.</li> <li>L’éruption cutanée est provoquée par la sève huileuse présente dans ses racines, ses tiges et ses feuilles.</li> <li>Pour prévenir une éruption cutanée due à l’herbe à puce, évitez la plante et portez des vêtements qui couvrent bien le corps. Rappelez-vous de ne pas toucher les feuilles découpées en trois : « feuilles par trois, on ne touche pas ».</li> <li>Lavez bien la peau exposée et les vêtements, ce qui peut aider à prévenir une réaction.</li> <li>L’éruption cutanée devrait disparaître au bout de quelques semaines. Les éruptions légères peuvent être traitées au moyen d’antihistaminiques, tandis que les éruptions extrêmement graves peuvent exiger des stéroïdes.</li> <li>Consultez votre médecin si votre enfant présente une fièvre ou si la région entourant l’éruption cutanée devient plus rouge, enflée ou libère une substance laiteuse.<br></li></ul><h2>Signes et symptômes d’une éruption cutanée causée par l’herbe à puce</h2><p>Les symptômes d’une éruption cutanée causée par l’herbe à puce peuvent comprendre:</p><ul><li>des rougeurs</li><li>une démangeaison extrêmement forte<br></li><li> <a href="/Article?contentid=789&language=French">l’urticaire</a></li><li>une enflure</li><li>des cloques plus ou moins grosses, formant souvent une ligne ou un trait</li><li>la présence d’une croûte.</li></ul><p>L’éruption cutanée type peut durer d’une à trois semaines.</p><p>Elle apparaît généralement sur les zones de peau exposées directement à l’herbe à puce. Certaines personnes peuvent aussi être exposées à l’huile de la plante par contact indirect:</p><ul><li>en se grattant ou en se frottant, ce qui étale l’huile sur d’autres zones de la peau</li><li>en touchant des vêtements, un animal de compagnie, des outils, des équipements de sport ou autres qui auraient pu être en contact avec la plante.</li></ul><p>Si l’herbe à puce est brûlée, l’huile peut se fixer aux particules présentes dans la fumée et être mise en suspension dans l’air, ce qui peut provoquer des réactions de la peau, des yeux ou <a href="https://pie.med.utoronto.ca/htbw/module.html?module=lung-child">des poumons</a>.<br></p><h2>Traitement d’une éruption cutanée due à l’herbe à puce</h2> <h3>Éruption légère</h3> <ul><li>Placez des linges frais sur la peau de votre enfant.</li> <li>Faites-lui prendre des douches à l’eau fraîche ou des bains à l’eau tiède.</li> <li>Donnez-lui un antihistaminique.</li></ul> <p>Essayez d’empêcher votre enfant de se gratter, car cela pourrait provoquer une infection ou des cicatrices et répandre la sève sur d’autres parties du corps. Si la réaction cutanée est très grave, votre enfant pourrait avoir à prendre des stéroïdes par voie orale.<br></p> <p>Les réactions peuvent varier d’une personne à l’autre. Certaines peuvent n’avoir aucune réaction, tandis que d’autres peuvent présenter une réaction très grave.</p> <h3>Signes d’une réaction grave à l’herbe à puce</h3> <p>La réaction de votre enfant est grave dans les situations suivantes:</p> <ul><li>rien ne soulage la démangeaison</li> <li>la peau autour de l’éruption semble être infectée</li> <li>votre enfant présente <a href="/Article?contentid=30&language=French">une fièvre</a></li> <li>l’éruption apparaît sur ses paupières, ses lèvres, son visage ou ses organes génitaux</li> <li>son visage enfle.</li></ul><h2>Quand consulter un médecin</h2> <p>Consultez un médecin si votre enfant:</p> <ul><li>présente <a href="/Article?contentid=801&language=French">une infection cutanée​</a> (les régions irritées deviennent alors plus rouges, enflées ou douloureuses ou libèrent une substance laiteuse)</li> <li>ne répond à aucun traitement pour les réactions cutanées légères.</li></ul> <p>Si votre enfant éprouve de la difficulté à respirer ou à avaler, conduisez-le immédiatement aux services d’urgence de l’hôpital le plus proche.</p>

 

 

Poison ivy769.000000000000Poison ivyPoison ivyPEnglishDermatologyChild (0-12 years);Teen (13-18 years)SkinSkinConditions and diseasesCaregivers Adult (19+)Rash2014-05-21T04:00:00ZShawna Silver, MD, FRCPC, FAAP, PEng6.1000000000000075.8000000000000801.000000000000Health (A-Z) - ConditionsHealth A-Z<p>Learn how to recognize a poison ivy plant, prevent rashes and how to treat the rash if your child is exposed.</p><p>Poison ivy is a plant that grows at sea level in moist shady regions east of the Mississippi River. It can cause a rash when it makes contact with the skin (contact dermatitis). The rash occurs when the skin reacts to substances in the oily sap (called urushiol) in the plant's roots, stems and leaves.<br></p><h2>What does the poison ivy plant look like?<br></h2><p>Poison ivy usually grows up large tree trunks as a shrub or as a vine.</p><ul><li>Each leaf has three leaflets that can be either shiny, smooth and hairless, or rough, hairy and velvety.</li><li>The leaves are reddish in the spring, green in the summer and yellow, orange or red in the fall.</li><li>The plant may have yellow-green flowers, or green or off-white berries.</li></ul> <figure class="asset-c-80"> <span class="asset-image-title">Poison ivy</span><img src="https://assets.aboutkidshealth.ca/akhassets/Poison_ivy_seasons_EQUIP_ILL_EN.png" alt="Poison ivy with green leaves in summer, green and red leaves in spring, and a mix of green, yellow and red leaves in fall" /></figure><h2>Key points</h2><ul><li>Poison ivy is a plant that can cause a rash when it makes contact with the skin.<br></li><li>Each leaf has three leaflets that can be shiny, smooth and hairless, or rough, hairy and velvety.</li><li>The rash is caused by oily sap in the plant's roots, stems and leaves.<br></li><li>To prevent poison ivy rash, stay away from the plant and wear protective clothing. A helpful rule for avoiding poison ivy is "leaves of three, leave them be".</li><li>Wash exposed skin and clothing thoroughly. This may help to prevent a reaction.</li><li>The rash should go away after a few weeks. Mild rashes can be treated with antihistamines. Very severe rashes might require steroids.</li><li>See your doctor if your child develops a <a href="/article?contentid=30&language=English">fever</a> or if the area around the rash becomes redder or swollen or has a milky discharge.</li></ul><h2>Signs and symptoms of a poison ivy rash</h2><p>The symptoms of a poison ivy rash may include:</p><ul><li>redness</li><li>extreme itching</li><li> <a href="/Article?contentid=789&language=English">hives</a></li><li>swelling</li><li>small or large blisters, often forming a line or streak</li><li>crusting skin</li></ul><p>The typical rash can last from one to three weeks.<br></p><p>The rash usually occurs on skin surfaces that are exposed directly to poison ivy. People can also be exposed to poison ivy's oily sap through indirect contact, including:</p><ul><li>scratching or rubbing, which moves the sap to other skin areas</li><li>contact with clothing, a pet, tools, sports equipment or other things that may have come into contact with the plant.</li></ul><p>If poison ivy is burned, the sap can cling to smoke particles and become airborne. This can cause reactions involving the skin, the eyes or the <a href="https://pie.med.utoronto.ca/htbw/module.html?module=lung-child">lungs</a>.</p><h2>How to treat a poison ivy rash</h2><h3>Mild rash</h3><ul><li>Place cool cloths on your child's skin.</li><li>Have your child take cool showers or lukewarm baths.</li><li>Give your child an antihistamine.</li></ul><p>Try not to let your child scratch. This can cause infection and scarring and may spread the sap to other parts of the body. If the rash is very severe, your child may need to take steroid medication by mouth.</p><p>Reactions may vary from person to person. Some people may not react to poison ivy at all, while others may have a very severe reaction.</p><h3>Signs of a serious reaction to poison ivy<br></h3><p>Your child has a serious reaction if:</p><ul><li>nothing helps to ease the itch</li><li>the skin around the rash seems to be infected</li><li>they develop a <a href="/article?contentid=30&language=English">fever</a></li><li>the rash appears on their eyelids, lips, face or genitals</li><li>their face swells</li></ul><h2>How to prevent a poison ivy rash</h2> <p>The best way to prevent a rash is to avoid contact with the plant by learning to recognize it. A helpful rule for avoiding poison ivy is "leaves of three, leave them be".</p> <h3>What to do if your child cannot avoid an area where poison ivy may be present</h3> <ul> <li>Apply a product to their skin that helps prevent the skin from absorbing the plant's sap. These products are available over the counter and usually contain bentoquatam.</li> <li>Have your child wear clothing such as pants, long sleeves, boots and gloves when they are around poison ivy. Depending on your child's age, help them or remind them to remove exposed clothing carefully.</li> </ul> <p>Poison ivy sap can remain active for a long time. For this reason, use hot, soapy water to wash your child's clothing, shoes and anything else that may have made contact with the plant.</p> <p>If your child touches poison ivy, it is possible to prevent a rash by:</p> <ul> <li>washing their skin well with warm water and soap</li> <li>washing everything that may have sap on it.</li> </ul><h2>When to see a doctor</h2><p>See a doctor if your child:</p><ul><li>develops a <a href="/Article?contentid=801&language=English">skin infection</a> (increasing redness, swelling, pain or a milky discharge from the irritated areas)</li><li>is not responding to any of the treatments for a mild rash.</li></ul><p>Take your child to your nearest hospital emergency department right away if they are having trouble breathing or swallowing.</p><img alt="" src="https://assets.aboutkidshealth.ca/AKHAssets/poison_ivy.jpg" style="BORDER:0px solid;" />https://assets.aboutkidshealth.ca/AKHAssets/poison_ivy.jpgpoisonivyPoison ivyFalse Learn how to recognize a poison ivy plant, prevent rashes and how to treat the rash if your child is exposed.