Postherpetic neuralgia(PHN) is the most common complication of herpes zoster, is a severe and intractable pain with a high incidence. Nearly 50% of PHN patients have experienced persistent pain for more than one year. Although it is not directly life-threatening, will lead to sleep disorders, even depression, seriously affecting the quality of life of patients. This project is a multi-center randomized controlled trial, which will recruit 448 patients with PHN in 7 hospitals, aiming to evaluate the analgesic effect and safety of electroacupuncture on postherpetic neuralgia, and provide evidence-based medical evidence for electroacupuncture treatment of PHN.
The investigators designed the multicenter randomized parallel controlled clinical trial of electroacupuncture on PHN which is rigorously designed and have an appropriate sample size, aiming to evaluate the efficacy and safety of electroacupuncture in pain relieving and pain removing in the treatment of patients with PHN.