Postherpetic neuralgia can be treated with calcium channel modulators drugs, nutrient nerve drugs. Postherpetic neuralgia is the persistence of neuralgia after herpes zoster rash has healed, clinically defined as postherpetic neuralgia. 1. Calcium channel modulators: calcium channel modulators include gabapentin, gabapentin can inhibit the electrical signal conduction of nerve fibers, thus playing a certain role in pain relief, attention should be paid before taking, gabapentin allergy as well as patients with acute pancreatitis is contraindicated, after taking it, there may be drowsiness, dizziness, fatigue, fever and other adverse reactions. 2. Nutritional nerve drugs: Nutritional nerve drugs, such as vitamin B1, has the role of nutritional nerve, regulating the role of the nerves, able to alleviate neuropathic pain symptoms, before using the instructions, allergy and allergic to vitamin B1 patients are prohibited, the process of taking the headache, fatigue, loss of appetite and other adverse reactions may occur. All of the above drugs have adverse reactions and are recommended to be used under medical supervision. Postherpetic neuralgia patients taking drugs during the period, the pain can not be stopped immediately after significant relief, it is recommended to maintain treatment for at least two weeks.