Herpes zoster is a skin symptom of nerve inflammation caused by recurrent attacks of the herpes I virus, which is a symptom; the attack of the nerve by the intrinsic virus is the root cause of post-neuralgia, which is the cause of the disease! Most doctors in the clinic tend to give active treatment for skin herpes and neglect to repair the damaged nerves in time, resulting in the patient’s skin herpes healed, but the pain is still developing, which is a typical treatment of headache and foot pain! As patients and family members of patients suffering from herpes zoster, it is important to be aware of what kind of herpes is likely to leave severe neuralgia, here we summarize several ideas based on clinical experience to help you make a judgment and facilitate timely consultation. The reason why the age factor is put in the first place is because the occurrence of post-herpetic neuralgia is closely related to age, the root cause is the problem of low immunity, the older you are, the worse the immunity, once the herpes occurs, the more difficult it is to repair the damage caused by the virus to the nerves, the greater the probability of post-herpetic neuralgia, the heavier the pain level and the longer it lasts.