Bell's palsy is a temporary paralysis that results from damage or trauma to a facial nerve. The condition often causes significant facial distortion. Symptoms of Bell's palsy often strike suddenly and may range in severity from mild weakness to total facial paralysis. A few other symptoms of Bell's palsy include drooling, dry eye or mouth, and impairment of taste. Among the tests that your healthcare provider may recommend to diagnose the condition include x-rays, electromyography, and an MRI. Treatment options for Bell's palsy may include medications, physical therapy, and eye protection. Most people with Bell's palsy recover completely within three to six months.