Bell's Palsy
Features
Rapid onset hours to days of unilateral facial paralysis involving both upper and lower face
Lag in eyelid closure is almost always present in BP and also never in stroke
Drooping of the corner of the mouth
Flattening of nasolabial fold
Subjective numbness or tingling
Retro-auricular pain 24 to 72 hours prior
Severe cases is loss of taste, intolerance of high-pitched sounds
May have dysarthria with eating
Exam:
Ensure upper and lower facial muscles involved
If billateral, suspect sarcoid, GBS, MG, myopathy
CN exam, especially CN6+7
Limb strength
ENT for Ramsay Hunt, parotid gland, lymphadenopathy
Treatment:
Pred 1mg/kg up to 75mg for 5 days
If severe, or signs Ramsay Hunt add antiviral
Eye protection if can’t close eye
Review at 2 and 6 weeks
If worsening or no improvement at 6 weeks refer to Neurology
If no recovery at 3 months exclude tumour of temporal bone or parotid
Reference:
Facial Palsy - HNE Pathways