Postherpetic neuralgia generally refers to postherpetic neuralgia, which generally means that the pain is still present in January after treatment, and can be relieved by local medication, systemic medication, and physical therapy as prescribed by the doctor. 1. Local medication: patients can follow the doctor’s instructions for local use of diclofenac sodium gel, compound lidocaine cream, etc. to relieve pain. 2. Systemic medication: patients can also take tricyclic antidepressants (such as amitriptyline, etc.), new anticonvulsants (such as gabapentin, pregabalin, etc.), opioids (such as tramadol, etc.), etc., as prescribed by the doctor to relieve pain. 3. Physiotherapy: Patients can also use infrared rays or ultrashort wave irradiation to reduce pain. Patients are advised to seek medical treatment in time and keep optimistic and actively cooperate with doctors to avoid lowering the quality of life due to pain.