”Facial palsy, known as facial nerve palsy in Western medicine, can occur throughout the year, but it is more frequent in winter and spring, especially when the temperature varies. According to Chinese medicine, the body is overly fatigued and then attacked by wind and evil, which affects the flow of qi and blood and the loss of harmony between meridians and channels, resulting in a distorted mouth and eyes. From the perspective of Western medicine, the main cause is a virus attacking the facial nerve, or herpes zoster virus invading the facial nerve, resulting in “facial palsy”, and in a few patients, otitis media can also cause facial nerve paralysis. Facial palsy is the common name for facial nerve paralysis, also known as “crooked mouth”, “stroke”, “slingback”, etc. It refers to facial muscle paralysis, which is caused by various causes of facial nerve damage. It is a condition caused by damage to the facial nerve for various reasons. The main clinical manifestation is the dysfunction of the motor function of the facial expression muscles. Facial palsy is also known as “mouth seclusion” in Chinese medicine, which is an impotent disease with sudden onset of facial numbness and distorted eyes and mouth. Facial palsy is not limited by age, and patients are often unable to perform basic facial movements such as raising the eyebrows, closing the eyes and puffing the mouth. There are two types of facial palsy, periodic and central, of which peripheral facial palsy has a high incidence, while the most common one is impotent facial neuritis or Bell’s palsy. When people usually speak of facial palsy, in most cases they are referring to facial neuritis. Because facial palsy can cause a very bizarre facial appearance, it is known as a “disfiguring disease”. For this reason, people are reminded that it is the time of the year when the seasons change and the temperature changes a lot, so it is important to add and remove clothes according to the warm and cold conditions, and never get cold after being heated. In addition, pay attention to proper rest, especially for business trips or long-distance travelers. If you find symptoms such as poorly closed mouth and eyes, crooked mouth and nose, facial paralysis, etc., go to the hospital in time, and in general, it can be basically cured in about 20 days. There are many causes of facial paralysis. Generally speaking, excessive psychological stress in long-term life and work, lack of sleep, fatigue, low immunity, history of stroke, intracranial hemorrhage, intracranial tumor, infection, otogenic diseases, traumatic poisoning, metabolic disorders, immune disorders, vascular insufficiency, congenital facial nucleus hypoplasia, etc. can lead to facial paralysis.