Postherpetic neuralgia in the elderly is mainly postherpetic neuralgia, which is caused by varicella-zoster virus damaging the nerves of the body, and can be treated by nerve block injections, oral medications, minimally invasive interventions and physical therapy. 1. Nerve tissue injection: patients with postherpetic neuralgia can go to the pain department for nerve block injection in the lesion area so as to improve it. 2. Oral medication: patients can reduce postherpetic neuralgia with painkillers such as pregabalin or gabapentin. 3. Minimally invasive interventional therapy: Acute and subacute herpes zoster-associated trigeminal neuralgia can be treated with pulsed radiofrequency in the semilunar ganglia. 4. Physical therapy: shock wave, electrotherapy, laser therapy, ultrasound therapy and other ways to relieve postherpetic neuralgia. Elderly people with postherpetic neuralgia have more treatment modalities, and it is recommended to go to regular hospitals for examination and treatment in time. The above drugs need to be standardized under the guidance of professional doctors.