Bell’s palsy can strike anyone at any age. It occurs most often in pregnant women, and people who have diabetes, influenza, a cold, or another upper respiratory ailments. Bell's palsy affects men and women equally. It is less common before age 15 or after age 60.
Bell's palsy is not considered permanent. But in rare cases, it does not disappear. Currently, there is no known cure for Bell's palsy. Recovery, though, usually begins 2 weeks to 6 months from the onset of the symptoms. Most people with Bell's palsy recover full facial strength and expression.