After recovery from herpes zoster, it is not easy for the condition to recur. Herpes zoster is a disease caused by the reactivation of the varicella-zoster virus, which infects the human body and lies dormant in the nerve roots, particularly when the immune system is weakened. Therefore, after recovery from herpes zoster, patients generally do not suffer from it again and can obtain long-lasting immunity. However, clinically, there are indeed some herpes zoster patients who experience recurrent episodes. This often directly relates to a decline in the patient's own immune resistance. Patients with underlying diseases, those who are chronically tired or fatigued, or those using immunosuppressive drugs, are prone to recurrent episodes of herpes zoster. Thus, while it is not easy for herpes zoster to recur, it is not absolutely non-recurrent.