The pain level of herpes zoster varies significantly from one individual to another, which is categorized as mild pain, moderate pain, and severe pain, among others. Since varicella zoster virus affects local nerves, patients may experience pain and discomfort. According to the pain rating scale, mild pain is 1~3 points, moderate pain is 4~6 points, and severe pain is 7~9 points. 1. Mild pain (1~3 points): generally show pain symptoms but can be tolerated, does not affect life, and has no effect on sleep. 2. Moderate pain (4~6 points): generally show that the pain is more serious, the body can not tolerate, sleep is affected, and need to take pain medication to relieve. 3. Severe pain (7~9 points): generally manifested as severe pain, intolerable, sleep quality is seriously affected, and at the same time, psychological impact, and the occurrence of autonomic nervous disorders and so on. Due to the different levels of pain, the treatment is different, the specific situation needs to be evaluated by a doctor’s visit.