Post-herpetic neuralgia, also known as post-herpetic neuralgia, often occurs in middle-aged and elderly patients with immunocompromised herpes zoster. The pain can last for months, years, or even a lifetime, and oral medication is largely ineffective, making it a difficult and persistent pain to treat clinically. The disorder often manifests as persistent pinprick-like, knife-like, burning, or electric shock-like spontaneous pain. Chronic pain is often associated with nociceptive hypersensitivity or hypersensitivity, i.e., the skin in the affected area feels unbearably painful when it is slightly rubbed by clothing. The pain is often heavy at night, and the patient often cannot sleep at night and is in pain. The main treatment methods: A. Oral strong analgesic “tramadol” or morphine extended-release tablets; drugs specifically for neuralgia such as gabapentin, pregabalin, etc. B. If the duration of the disease is less than 3 months, nerve block treatment can be supplemented; C. If the duration of the disease is more than half a year, radiofrequency thermal coagulation treatment of intercostal nerve or dorsal root node of spinal nerve can be received.