Bell’s palsy is form of facial paralysis related to dysfunction of the facial nerve. Most cases are one-sided (unilateral) and the source is often unknown (idiopathic). It may be associated with lyme disease as well as with the herpes simplex virus. Treatment is aimed at restoration of facial symmetry and regaining the ability to smile. Instances involving paralysis of the eyelid may require placement of a gold weight to help protect the cornea.