Facial neuritis, the most common cause, is due to infection by the optic nerve virus. This virus invades the nerves, especially prone to invade the facial nerve, causing damage, inflammation, and edema of the facial nerve, leading to symptoms of facial paralysis, which are manifested as shallower forehead wrinkles, shallower nasolabial folds, widened palpebral fissures, incomplete eyelid closure, and the mouth corner deviating to the opposite side. In the acute phase of treatment, some drugs that reduce nerve edema can be used, along with drugs that nourish the nerves. After the acute phase, when the condition stabilizes, comprehensive treatments such as acupuncture and physiotherapy can be combined. Additionally, the cause of the disease is greatly related to the decrease in the body's immunity. Patients are more likely to become infected and develop symptoms of facial neuritis when their immunity is lowered due to staying up late, exhaustion, and irregular lifestyles. (Medication use should be done under the guidance of a professional doctor.)