Facial palsy can be caused by a number of different things some of which are listed here:
The incidence of Bells palsy (the most common type of facial palsy) is believed to be approximately 1 in 5000 with the incidence of all facial palsies closer to 1 in 3000. (30 cases per 100,000 per year). Approximately 70% of Bells palsy patients will have complete recoveries in a short time with the likelihood of a full recovery increasing if patients have been given steroids within the first 72 hours of developing facial palsy. Patients with Ramsay Hunt Syndrome should receive both steroids and antiviral medication.