Bell's palsy
SpecialtyNeurology, ENT
SymptomsInability to move the facial muscles on one side, change in taste, pain around the ear
Usual onsetOver 48 hours
Duration<6 months
CausesUnknown
Risk factorsDiabetes, recent upper respiratory tract infection
Diagnostic methodBased on symptoms
Differential diagnosisBrain tumor, stroke, Ramsay Hunt syndrome, Lyme disease
TreatmentCorticosteroids, eye drops, eyepatch
PrognosisMost recover completely
Frequency1–4 per 10,000 per year