The disease can be caused by hypothermia or injury. Neuritis sometimes occurs as a complication of otitis media. In some cases, neuritis caused by varicella-zoster virus, like shingles, and is accompanied by a rash. Often the cause of neuritis of the facial nerve is unknown. In this case we speak of idiopathic neuritis of the facial nerve, the so-called Bell's palsy.
Most are one-sided defeat of the facial nerve. Early on in the ear may have mild to moderate pain and paresthesias (numbness, tingling, pins and needles). Usually pain occurs simultaneously with paresis or 1-2 days prior to its development.
Facial nerve is involved in various functions of the body. First of all, it provides traffic mimic muscles. Thanks to him, we can smile wrinkle his brow, etc. With neuritis of the facial nerve is an asymmetry of the face. One side of the face like a mask. If the nerve is affected immediately after the release of the brain, in addition there are dry eyes, taste disturbance on the front of the tongue and hyperacusis (increased perception of the unpleasant sounds). But more often suffer terminal branches of the facial nerve, which are close to the skin, resulting in paresis of facial muscles and tearing.
Most patients experience a full recovery in the event of timely treatment. The earlier visit to a doctor, the more favorable prognosis. The average duration of treatment is 3-4 weeks. If the nerve damage was shallow (wounded nerve sheath), its function can be restored within 3-6 weeks. In more severe cases (damaged nerve body process), this process can take up to 3-6 months. In 10% of patients neuritis of the facial nerve recurs. A small number of patients may result in permanent facial muscle weakness or