Herpes zoster is a form of herpes zoster caused by the zoster virus. The attack is distributed along the peripheral nerve on one side of the waist with small blisters and severe pain. Herpes is a disease caused by a viral infection, generally divided into herpes simplex virus and herpes zoster virus, and both lesions appear as clusters of small blisters. Herpes simplex is most often found around the mouth, face, nasal area or oral mucosa. Herpes zoster occurs more often on the lower back, eyes, and ears. The initial lesions mostly present as a strange burning sensation on the skin, followed by an erythema or small rash in a few days, which then quickly transforms into small blisters clustered together and arranged along nerve lines, with severe pain being the main feature. Treatment is mainly antiviral. You can use acyclovir, vaxilovir, etc. You can use immune-enhancing drugs such as medicinal transfer factor, interferon, etc., and painkillers such as ibuprofen and diclofenac sodium, etc. Specific medications are used under the guidance of a doctor. In short, herpes lumborum is caused by a virus, and the treatment is based on the principles of antiviral, pain relief and prevention of complications.