It is idiopathic, Sudden on set, facial paralysis or paresis.It can occur in any age group, equally common in males and females. It never spreads beyond face.
Steroids are main part of treatment. Earlier the treatment , better chances of recovery.
Vitamin B12 Supplements.
Eye Care to prevent corneal ulcers and Exposure Keratitis
MRL Brain to rule out only intracranial pathology