Many people who get shingles will actively go to a dermatologist thinking it is a skin problem. It is not known that shingles is more importantly nerve damage that causes shingles neuralgia. Younger patients or those with normal immunity tend to recover on their own. However, for many older patients and those with low immunity, if left untreated the condition may be delayed and eventually turn into postherpetic neuralgia. The pain department applies injection therapy and lesion area treatment, which are more targeted for herpes zoster nerve injury and their efficacy is more accurate. Foreign consensus on the treatment of herpes zoster also recommends early paravertebral injections in patients with herpes zoster to eliminate the ongoing damage to the nerves from the herpes zoster virus. This is to reduce the chance of herpes zoster becoming post-herpetic neuralgia. Once herpes zoster turns into postherpetic neuralgia, treatment will be very difficult. There is no curative treatment available at home or abroad, but only oral pain medication to control painful episodes. For elderly patients with herpes zoster, they should seek medical attention and get injections as soon as possible, instead of limiting themselves to dermatological treatment, to reduce the possibility of herpes zoster neuralgia.