Herpes zoster is caused by the varicella-zoster virus. Typically, this virus causes chickenpox in children, but in adults, it manifests as herpes zoster, which is unrelated to chickenpox. The herpes zoster virus primarily attacks the nerves, causing neuralgia. Therefore, it is generally recommended to rest, consume a light diet, and avoid spicy foods, seafood, and rich foods. Treatment usually involves the use of acyclovir and valacyclovir for topical application. Oral nutritional supplements for the nerves, such as vitamin B1 and B12, and spleen peptides to enhance the body's immunity, are also recommended. It is important to rest and pay attention to these aspects. It is best to visit a local dermatologist for a proper diagnosis.