Sticking this plaster can relieve neuralgia after herpes zoster. This kind of pain occurs because the infection of herpes zoster virus damages sensory neurons, causing them to have abnormal discharge or even ectopic activation, which makes sensory neurons dysfunctional. Because of discharge or peripheral or central sensitization, patients will have different degrees of itching and tingling. Knife cutting pain, fluctuation pain. At this time, if Debenin lidocaine gel plaster is applied, it can directly act on the painful part, so that patients can get rid of pain anytime and anywhere, and it can also reduce the painful area and improve sleep. At the same time, it has the characteristics of high bioavailability and less gastrointestinal absorption. Don't worry if you have itching, foreign body sensation, discoloration, discoloration, burning sensation, etc. During the application. These symptoms are usually mild and transient, and can be relieved naturally within a few minutes or hours.