Herpes zoster without rash is mainly treated by medication such as antiviral drugs, pain relieving drugs, and physical methods can also be used to relieve the symptoms. 1. Antiviral drugs: commonly used systemic antiviral drugs include acyclovir, valacyclovir, phosphonate, bromvudine tablets and so on. 2. Painkillers: For mild to moderate pain, NSAIDs such as ibuprofen can be taken for analgesia. For moderate to severe pain, opioids such as morphine or calcium channel blockers such as gabapentin and pregabalin can be considered. 3. Physical methods: Ultraviolet light, spectrum therapeutic instrument, infrared and other local irradiation can relieve pain. The actual condition of the patient is different, the treatment method is likely to be different, the specific choice of drugs and treatment programs, you can follow the doctor’s advice.