The prognosis of postherpetic neuralgia is as follows: 1. It is best to prevent the occurrence of herpes zoster neuralgia, if the herpes zoster virus is controlled by making full use of drugs during herpes zoster treatment without nerve damage, postherpetic neuralgia can be avoided; 2. Most patients with postherpetic neuralgia have a better prognosis after regular oral medication and minimally invasive treatment; 3. Patients of advanced age, poor health or those undergoing radiation therapy, chemotherapy and other oncological treatments have increased treatment difficulties and a poorer prognosis.