Hello, facial paralysis is a self-limiting disease, and there is a high probability that it will relieve itself. However, it is best to go to a regular hospital for treatment, such as nutritional nerve drugs (mecobalamin, vitamin B), combined with acupuncture and cupping. Since the plaster is itchy and swollen after use, it must be an allergic reaction to the medicine in the plaster, which irritates the skin. You should stop using it immediately and clean the skin on the plaster. If it is serious, go to the hospital for dermatological treatment.