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A 47-year-old member asked:

Please tell me what causes bell's palsy for a teenager?

1 doctor answer1 doctor weighed in
Dr. Cornelia Franz
Specializes in Pediatrics
Viruses usually: The cause of bell's palsy is not clear. Most cases are thought to be caused by the herpes virus that causes cold sores.1 in most cases of bell's palsy, the nerve that controls muscles on one side of the face is damaged by inflammation. http://www.webmd.com/brain/tc/bells-palsy-topic-overview.

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Last updated Dec 29, 2013

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