Facial neuritis, commonly known as facial paralysis, "crooked mouth" and "hanging wind", is a disease characterized by motor dysfunction of facial expression muscles. It is a common and frequently-occurring disease, regardless of age. The general symptom is that the mouth and eyes are skewed, and patients often can't even complete the most basic actions such as raising eyebrows, closing their eyes and bulging their mouths.

clinical picture

The symptoms are mostly facial paralysis, disappearance of forehead wrinkles, enlargement of eye fissure, flattening of nasolabial groove and drooping of corners of the mouth. When smiling or grinning, the drooping corners of the mouth and facial distortion are more obvious. The affected side should not frown, close eyes, inflate or pout. When you drum your cheeks and whistle, the air will leak because the affected lip cannot be closed. When eating, food residues often stay in the gap between the teeth and cheeks of the affected side, and saliva often drips from this side. Because the tear spot everts with the lower eyelid, tears can't flow out according to normal drainage.

Facial paralysis caused by facial neuritis is mostly unilateral, and the right side is more common. When most patients wash their faces and gargle in the morning, they often find that one cheek is invalid and their mouth is askew. Some patients may have pre-lingual 2/3 taste disorder and auditory allergy.

Peripheral facial neuritis caused by trauma can be divided into early-onset (facial paralysis immediately after injury) and late-onset (facial paralysis 5-7 days after injury). According to the occurrence of facial paralysis after injury, the degree of facial nerve injury can be evaluated and the prognosis can be judged.