Facial palsy is also known as facial nerve palsy. The causes of facial palsy include physical factors, trauma, medical factors, infection, cerebrovascular disease, tumor, poisoning, immune diseases, etc. Patients need to identify the causes of facial palsy and then treat them symptomatically. Patients need to clarify the causes of facial palsy, and then carry out symptomatic treatment. 1. Physical factors: The most common cause of facial palsy, facial palsy is commonly caused by cold wind on the face and behind the ears, and patients can show shallow forehead lines, weakness in closing the eyes, cheek puffing, whistling, teeth exposure, and shallow nasolabial folds. 2. Facial surgery causes facial palsy, such as parotid surgery, mastoid surgery, dental treatment, and tonsillectomy; 4. aneurysms or lipomas that compress the facial nerve will also cause facial palsy; 7. Poisoning: alcohol poisoning and carbon monoxide poisoning are common and lead to facial palsy; 8. Immune diseases: for example, acute Guillain-Barre syndrome damages the facial nerve, and clinical manifestations of facial palsy will also occur. Patients should be treated according to different etiologies and can be given hormonal, antiviral, and nerve-nourishing drugs for treatment. After the acute phase, acupuncture treatment can also be performed.