Do you have herpes zoster once?

Herpes zoster is caused by varicella zoster virus. After the first infection with varicella zoster virus, chickenpox will occur. After chickenpox occurs, the human body is theoretically immune to the virus for life. That is to say, a person who has chickenpox once will not get chickenpox again. So after a herpes zoster occurs, it generally will not happen again. Of course, these are theoretical. So for people with low immunity, such as the elderly, children with poor constitution, or some people with problems with their own immune system, or even patients with malignant tumors, there is still a certain probability of recurrence of shingles among these people with low immunity. Therefore, for normal people, shingles will not get a second time after getting it once, but for people with low immunity, it can recur or occur many times.