Facial neuritis is a typical disease in the field of neurology, so it is necessary to register under the neurology department. Neurologists have rich experience in the diagnosis and differential diagnosis of facial neuritis. Essentially, facial neuritis is a non-specific inflammatory response of the body. Before the onset, the patient may have been exposed to viral infections or stimuli such as cold wind on the face, leading to paralysis in the facial nerve distribution area, such as weakened eyelid closure, shallower nasolabial folds, and deviations of the mouth corner with drooling. Additionally, patients may experience herpes in the external ear canal's eardrum, accompanied by a decrease in taste at the front of the tongue. Neurologists will treat patients with corticosteroids and B vitamins.