1.In the early stage of pain, when the symptoms are not serious, oral carbamazepine can be used to control the symptoms, and the peripheral branches of the trigeminal nerve can also be blocked for treatment, but usually relapse within a year. 2. If the pain is severe and the body is in good condition, the preferred treatment is vascular decompression, which has the highest cure rate among all treatment modalities and is the only one that may preserve the normal sensation of the face. However, the corresponding treatment is relatively risky, and the incidence of risk is directly related to the experience of the surgeon in charge. Our department completes more than 400 cases of this type of surgery every year, and the cure rate of trigeminal nerve surgery can reach 95%. 3, if the physical state is poor, can not tolerate surgical treatment, and oral carbamazepine drug reaction, can choose trigeminal nerve hemianoplasty micro balloon compression, or radiofrequency or r knife. 4.If the patient is old, in very poor physical condition, cannot tolerate the reaction of carbamazepine drug, and moreover cannot tolerate the surgery or radiofrequency treatment, only r-knife treatment is suitable.