Nerve pain relief drugs, there are the following kinds: 1, carbamazepine, is currently the most widely used drugs, the efficacy is also better. The usual common dose is 0.1-0.2 grams / times, 2-3 times / day, the dose should be decided according to the patient’s condition and tolerance. Dizziness, unsteady walking, ataxia and other side effects are more common, some patients will also have drowsiness, but its most serious side effects are prone to cause bone marrow suppression, liver function damage, and sometimes there is a rash, once a rash occurs, the drug must be stopped immediately, long-term use of the drug must be regular monitoring of blood and liver function. 2, gabapentin, is also a more widely used drugs, 0.3-0.6 grams / time, 3 times / day, its disadvantages , 3 times / day, the disadvantage is that a larger dose is needed to control the nerve pain, you need to start from a small dose and slowly increase the amount upward, with the lowest dose that can control the patient’s symptoms to maintain. 3, Pregabalin, the general dose is 75-150mg / times, 2 times / day. The disadvantage is that it is more expensive, and the pain relief effect is fair.