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Also known as: idiopathic facial nerve palsy · acute facial paralysis
Acute, unilateral lower-motor-neurone facial weakness (the forehead IS involved) with no other cause — often with ear pain, altered taste and sound sensitivity. Most recover; early corticosteroids improve the outcome.
Any age (peak in young-to-middle adults); more common in pregnancy and diabetes; often after a viral prodrome.
Improve recovery — start <72 h
Corneal protection; antiviral for severe/Ramsay Hunt
Guidelines change. If something here is out of date, tell us — we keep these current.
🚩 Report outdated / suggest update