Herpes zoster is an infection of the skin surface, causing the body to develop corresponding clinical symptoms, commonly associated with intercostal neuralgia, the patient may appear in one or more places as a belt-like distribution along the costal nerves, blisters, papules, and accompanied by severe pain, fever, increased temperature and other manifestations. If the patient experiences these symptoms, it is recommended that he or she seeks prompt medical attention at a specialized medical facility, where a dermatologist can usually make the diagnosis. If such symptoms are determined to be due to herpes zoster virus infection, appropriate treatment measures can be taken, such as the use of antiviral drugs, including acyclovir, and neurotrophic drugs, such as B vitamins, which are beneficial to the nutrition of the nerves. If the patient experiences severe pain, pain relieving drugs can be applied, and after treatment, the symptoms of drusen can be effectively controlled.