Overview, Causes, & Risk Factors
Bell’s palsy is a form of facial paralysis on one side of the face resulting from damage to theseventh cranial nerve.
What is going on in the body?
Bell’s palsy is thought to be due to inflammation of the seventh cranial nerve.This nerve is called the facial nerve. Bell’s palsy tends to come on very suddenly. Somepeople notice pain behind the ear a day or two before they notice any facial muscle weakness.
What are the causes and risks of the disease?
Bell’s palsy is caused by a sudden breakdown of or damage to the nervethat supplies the muscles on one side of the face. Attacks often occur without a clearcause. The common cold sore virus, herpes simplex,is the likely cause of most cases of Bell’s palsy. Bell’s palsy is more common inpregnant women, people recovering from a viral infection, and people with diabetes.
Symptoms & Signs
What are the signs and symptoms of the disease?
Diagnosis & Tests
How is the disease diagnosed?
Other disorders, such as strokeand some tumors, can also cause similar symptoms. A doctor can determineif the problem is Bell’s palsy based on the specific symptoms. The doctor may also use blood tests,an MRI, or a CAT scan.
Prevention & Expectations
What can be done to prevent the disease?
Basic wellness methods may help prevent Bell’s palsy. This is because thecommon cold sore virus is often involved. A healthy diet, adequate exercise, and stressmanagement are all important.
What are the long-term effects of the disease?
The prognosis for Bell’s palsy is good. With or without treatment, most people begin tofeel better within 2 weeks. About 80% recover completely within 3 months. In a few people, symptoms maylast longer or even fail to disappear completely. Bell’s palsy affects onlyone side of the face at a time. It is possible, though not usual, for Bell’s palsy to occur again in thesame person. Experts do not agree on the rate of recurrence, but at most it is only 10 to 15%.
What are the risks to others?
Bell’s palsy is not contagious. People who have it can return to work and their usualactivities as soon as they feel ready.
Treatment & Monitoring
What are the treatments for the disease?
It is important to consult a doctor right away once symptoms begin.Recent studies have shown that steroids are probably effective in treating this condition andrelieving some of the symptoms. The antiviral drug, acyclovir, is possibly effective in improvingfacial function when used in combination with steroids. Painkillers may also help. Other treatments include:
In addition, rest is important in aiding healing from the facial nerve trauma. It is normal to feelmore tired than usual during this period. Frequent brushing of the teeth and rinsing of the mouth can helpget rid of food that gets stuck between the gum and cheek. An earplug can help prevent discomfort from noisesensitivity. Moist heat can provide some short-term relief from facial pain.
What are the side effects of the treatments?
Preventing eye problems with eye drops and an eye patch is very important.Sometimes eye drops and steroids can have side effects. Any side effects should be reported tothe doctor.
What happens after treatment for the disease?
With or without treatment, most people begin to get significantlybetter in 2 weeks. About 80% recover completely in 3 months.
How is the disease monitored?
Checking in with a doctor during the period of facialparalysis is important to make sure there are no added complications. Thiscondition can create anxiety because the palsy symptoms can look like a stroke. Any new orworsening symptoms should also be reported to the doctor.
Article type: xmedgeneral