Elderly postherpetic neuralgia is usually caused by postherpetic neuralgia, patients can be treated under the guidance of doctors through pain medication, nutritive nerve medication or through nerve block injections for improvement. 1. Painkillers: Postherpetic neuralgia can be treated by some painkillers, common painkillers include Pregabalin, Gabapentin and so on. 2. Nutritional nerve drugs: postherpetic neuralgia is caused by the virus damage to the nerves of the body, so it can be improved by nutritional nerve drugs, such as methylcobalamin, vitamin B1, vitamin B12 and other drugs. 3. Nerve block injection: Nerve block injection is to inject anti-inflammatory analgesic, nutritive drugs into the nerves around the innervated pain area to improve, such as the use of such as fentanyl, morphine and so on. For the existence of postherpetic neuralgia in the elderly, it is recommended to go to the regular hospital in time, under the guidance of professional doctors for symptomatic treatment. Drugs need to be used in accordance with medical advice.