Causes And Complications Of Bell's Palsy

Respiratory Illnesses

Various viruses cause respiratory illnesses involving the upper part of the respiratory system, such as chest colds or bronchitis. Symptoms include coughing, chest congestion, sneezing, sore throat, fever, headache, wheezing, and some difficulty breathing. Evidence indicates some individuals who develop Bell's palsy had a recent bout with viral upper respiratory illness. Just as with coxsackievirus, it's possible the viruses that cause chest colds remain dormant in the body after the individual recovers. These viruses may also attack the cranial nerve that controls the facial muscles, resulting in symptoms of Bell's palsy.

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