Bell’s palsy, for example, has a self-healing rate of about 80%. Most of them heal gradually on their own, even without treatment, after onset. More than 70-80% of patients with mild lesions can return to full normalcy within 4-6 weeks without any residual symptoms. Another 15% of patients with more severe disease may recover partially after 2-3 months. Finally, about 10% of patients have a very poor prognosis without treatment and have more serious complications. However, many people do not know that facial palsy is self-healing, and even many doctors do not know or admit that facial palsy is self-healing. In a very famous clinical epidemiological survey abroad, the author observed more than 2,000 facial palsy patients and found that 70% to 80% of these 2,000 facial palsy patients healed themselves without treatment within three to four weeks of onset. In China, we have also done the same survey, and it is slightly lower than abroad. There are more than 100 possible causes of facial palsy as a symptom, and the most common cause in our life is actually Bell’s palsy. In addition to this, there is a large category of central facial palsy, which is often referred to as stroke facial palsy (or even hemiparesis), which is caused by cerebrovascular accidents and is outside the scope of our discussion in this question. The facial palsy we are talking about has an 80% self-healing rate and refers specifically to Bell’s palsy, or idiopathic facial palsy. Bell’s palsy accounts for the majority of all patients with peripheral facial palsy, and the percentage is quite high. These patients have a very high self-healing rate, and the less severe the symptoms after the onset, the faster the self-healing. Many people do not recognize that Bell’s facial palsy is self-healing. In fact, facial palsy is a common disease at home and abroad, and not everyone goes to the hospital after getting it. Some people are cured by acupuncture, some by plastering, some by herbal medicine, and some by surgery. In a very famous clinical epidemiological survey abroad, the author observed more than 2,000 facial palsy patients and later found that 70% to 80% of these 2,000 facial palsy patients healed themselves without treatment within three to four weeks after the onset of the disease, which is clinically called the phenomenon of self-healing. This is a clinical phenomenon called self-healing. Why do some people say that most people do not heal on their own? It is quite understandable. Patients who get well in half a month will not go online every day and take the initiative to say that they are not here after they get well. Only patients who are not well will go online to look up, ask questions, and talk about their experiences everywhere to seek help or to help others. Regardless of whether the small percentage of patients who could not heal themselves got better or not, the facial palsy made a deep impression on him. How does a doctor cure his own facial palsy? People actually don’t know that Bell facial palsy is a very common disease among our medical staff. Most doctors work under irregular work pressure and the operating room temperature is relatively low. In any tertiary hospital, there are at least two to three thousand workers, and about ten doctors or nurses will develop facial palsy in a year. One of our treatments for these companions is to prescribe him with anti-viral drugs and a little hormone medicine, and give him 7 days’ leave to go home and rest and take the medicine strictly according to medical prescription. Usually after 7 days he comes to work alive and well. In fact, this is a self-healing process, and for some mild cases of facial palsy, it is indeed self-healing. Although most patients with Bell’s facial palsy can heal themselves, there is one prerequisite: you still need to see a doctor at the first opportunity. The judgment that “it’s okay, it will heal itself in a few days” is a professional judgment made by a doctor, not your own assumptions that you think it’s just a fluke. Although Bell’s facial palsy has a high rate of self-healing, you should not gamble with your own face. It is still important to hurry up and get regular treatment. Even if you get well quickly under the premise of treatment, don’t feel that you can heal yourself without looking at the next attack, that won’t work either. A part of the incurable facial palsy finally can not be cured, leaving a lot of sequelae, but also because when the onset of the disease simply did not see a doctor, they feel that it does not matter, negligence and carelessness finally regret too late. Therefore, it is true that most cases of Bell’s facial palsy will heal on their own after the onset of the disease, but it is still necessary to go to the hospital to be examined by a doctor and given judgment and intervention. Of course, there are some cases of facial palsy that do not heal on their own, such as Hunter’s facial palsy. Hunter’s facial palsy is caused by the herpes zoster virus, and the obvious feature is the herpes rash behind the ear before and after the onset of the disease. Mero syndrome, also known as recurrent labiofacial palsy syndrome, or giant lip-facial palsy-folded tongue syndrome, is more common in recurrent peripheral facial palsy, and some studies have reported that it accounts for 23.9% of patients with recurrent facial palsy. Patients with Mero syndrome have clinical features such as multiple recurrent attacks, commonly alternating bilateral attacks, and slow recovery from facial palsy. Its etiology and pathogenesis are still unclear, and most scholars believe that it may be related to multiple factors such as infection, abnormal immune function, genetics, allergic reactions and vasodilatory dysfunction regulated by the autonomic nervous system. I have seen a patient with Mero syndrome with 26 episodes, averaging once every few months. Such patients can be considered for prophylactic surgery to avoid recurrent episodes in the future. Facial palsy caused by various types of tumors The common causes are nerve sheath tumors and cholesteatoma. If no tumor is found or no good treatment is given to the tumor, the facial palsy symptoms will improve when the tumor is internally necrotic or the local edema subsides, but as the tumor grows, the facial palsy symptoms will come on again, and often the facial palsy will be worse than the previous attack. Diseases such as otitis media Otitis media attacking the facial nerve can also cause damage to the facial nerve function, and when the local inflammation improves with adequate medication and drainage, the facial nerve function is temporarily restored. Traumatic facial palsy Traumatic facial palsy is most commonly caused by deep wounds such as knife wounds, scratches, car accidents, falls, industrial accidents, firearm injuries, etc. The facial nerve trunk and branches are broken, also seen in parotid surgery, plastic surgery causing injuries. The best treatment method is to repair the wound as soon as possible, the anastomosis, the transplantation, do not miss the best time.