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Regardless of the trigger, Bell’s palsy is best described as an event – trauma to the nerve. As with any other injury, healing follows. The quality and duration of recovery is dependent on the severity of the initial injury. If the nerve has suffered nothing more than a mild trauma, recovery can be very fast, taking several days to several weeks. An “average” recovery is likely to take between a few weeks and a few months. The nerve regenerates at a rate of approximately 1-2 millimeters per day, and can continue to regenerate for 18 months, probably even longer. Improvement of appearance can continue beyond that time frame.