If unprotected, the eye may develop ulcers on the cornea. Tooth decay and gum disease due to reduced saliva and impairment of chewing. Psychological and self-esteem problems. Bell's palsy is distressing, but it is not dangerous. The extent of nerve damage determines the extent of recovery.
Improvement is gradual and recovery time varies, sometimes requiring many months.
Patients with mild facial paralysis usually recover completely with several months. Surgery can sometimes improve facial appearance and muscle function in patients who do not recover fully.