Corticosteroids and antiviral treatment for Bell's palsy (idiopathic facial paralysis).

This is a protocol for a Cochrane Review (intervention). The objectives are as follows: Primary objective To evaluate the benefits and harms of corticosteroids, antiviral agents, and their combination, when given at onset for Bell's palsy. Secondary objective To explore whether equity-related factors, particularly age, influence the benefits or harms of those treatments.