Herpes zoster is a common inflammatory skin reaction caused by infection with the varicella zoster virus. Herpes zoster is a common inflammatory skin reaction caused by varicella-zoster virus infection, which often results in neuroinflammatory edema due to the invasion of local sensory nerves. In clinical practice, herpes zoster is not only associated with neuralgia, but also with localized hyperalgesia before the onset of herpes zoster, and in some cases, neuralgia may remain after the herpes zoster has healed. If the patient can be identified as having shingles, if it is indeed painless, first of all the disease is relatively mild, or the disease is well controlled. Or the patient may not have shingles itself, in which case it is best to go to a regular hospital dermatology department for further consultation.