Bell's palsy Information

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Looking at yourself in front of the mirror, you noticed that half of your face is somewhat "sagging", eyelid is drooping such that you cannot fully open your eye. Probably you are eating your favorite food and all of a sudden you cannot enjoy the food because you can't taste anything. These signs might indicate that you are experiencing a condition called Bell's Palsy.





Bell's palsy is a form of temporary facial paralysis resulting from damage or trauma to one of the two facial nerves. It is the most common cause of facial paralysis. Generally, Bell's palsy affects only one of the paired facial nerves and one side of the face, however, in rare cases, it can affect both sides. Symptoms of Bell's palsy usually begin suddenly and reach their peak within 48 hours. Symptoms range in severity from mild weakness to total paralysis and may include twitching, weakness, or paralysis, drooping eyelid or corner of the mouth, drooling, dry eye or mouth, impairment of taste, and excessive tearing in the eye. Bell’s palsy often causes significant facial distortion. Most scientists believe that a viral infection such as viral meningitis or the common cold sore virus -- herpes simplex-- causes the disorder when the facial nerve swells and becomes inflamed in reaction to the infection.



Is there any treatment?



There is no cure or standard course of treatment for Bell's palsy. The most important factor in treatment is to eliminate the source of the nerve damage. Some cases are mild and do not require treatment since the symptoms usually subside on their own within 2 weeks. For others, treatment may include medications such as acyclovir -- used to fight viral infections -- combined with an anti-inflammatory drug such as the steroid prednisone -- used to reduce inflammation and swelling. Analgesics such as aspirin, acetaminophen, or ibuprofen may relieve pain, but because of possible drug interactions, patients should always talk to their doctors before taking any over-the-counter medicines.



Physical therapy to stimulate the facial nerve and help maintain muscle tone may be beneficial to some. Facial massage and exercises may help prevent permanent contractures (shrinkage or shortening of muscles) of the paralyzed muscles before recovery takes place. Moist heat applied to the affected side of the face may help reduce pain.



Other therapies that may be useful for some individuals include relaxation techniques, acupuncture, electrical stimulation, biofeedback training, and vitamin therapy (including vitamin B12, B6, and zinc), which may help nerve growth.



In general, decompression surgery for Bell's palsy -- to relieve pressure on the nerve -- is controversial and is seldom recommended.



Will I recover from Bell's Palsy?



The prognosis for individuals with Bell's palsy is generally very good. The extent of nerve damage determines the extent of recovery. With or without treatment, most individuals begin to get better within 2 weeks after the initial onset of symptoms and recover completely within 3 to 6 months.








Sources:

National Institute of Neurological Disorders and Stroke(NINDS)(December, 2007). Bell's Palsy Information Page. Retrieved January 10, 2007, from NINDS, National Institutes of Health. Web site: http://www.ninds.nih.gov/disorders/bells/bells.htm



National Institute of Neurological Disorders and Stroke(NINDS)(April, 2003). Bell's Palsy Fact Sheet (NIH Publication No. 03-5114). Retrieved January 10, 2007, from NINDS, National Institutes of Health. Web site: http://www.ninds.nih.gov/disorders/bells/detail_bells.htm

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