Bell's palsy

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An overview of the symptoms, causes and treatment of this sudden partial facial paralysis.

Key points

  • Bell's palsy is sudden partial facial paralysis. Usually the symptoms improve within a few weeks or months.
  • If your child starts showing symptoms of Bell's palsy, see your child's doctor right away.
  • Bell's palsy occurs when the nerve controlling facial muscles becomes inflamed or swollen.
  • The cause of the swelling is a viral infection.
  • Most children with Bell's palsy recover fully, with or without treatment.
Last updated: May 7th 2010