For posterior cerebral nerve pain, usually occipital neuralgia or auricular neuralgia, the medications include the following.1. Drugs for neuralgia, commonly used are carbamazepine, pregabalin, and gabapentin. The side effects of carbamazepine are relatively large, but the efficacy is the best. When using the drugs, it should be noted that the elderly and children should use them with caution, as they may cause bone marrow suppression and liver function damage. Pregabalin is also effective, but more expensive, and can be used by patients with better financial conditions. The effect of gabapentin is relatively slow and requires the use of larger doses to control pain symptoms. 2, muscle relaxation drugs, commonly compounded cloxazolazone, ethylprednisolone or tizanidine. These drugs are stimulating to the gastrointestinal tract and are recommended to be taken after meals. 3. nutritional drugs, such as methylcobalamin, vitamin B1 or furanothiamine, adenosylcobalamin, are used to promote nerve repair.