Herpes causes unbearable pain, usually neuralgia, which is a complication of shingles. The degree of this neuralgia is more intense, often knife-like, tear-like, or fire-like, resulting in unbearable and painful pain, and requires pain relief treatment with drugs specifically for neuralgia and nerve-nourishing drugs to promote nerve repair. The following 3 kinds of painkillers are commonly used: 1. Carbamazepine. The best pain relief effect, but the side effects are large, in elderly people should pay attention to reduce the dose, caution, and should pay attention to observe the changes of blood routine, liver function, etc. 2, gabapentin. The pain relief effect is acceptable, but it depends on the dose, so it is necessary to use a larger dose to achieve the pain relief effect, and the dose should be increased slowly from a small dose. 3. Pregabalin. The effect of pain relief is still possible, but the price is more expensive.4. Nutritional drugs are commonly used, such as vitamin B1, methylcobalamin and sodium cytidylcholine capsules.