1.Does shingles (serpentine) recur? The vast majority of people only get it once, and if a second attack occurs, it mostly indicates a weaker resistance and should be checked for immune (cancer) related indicators. 2.How to prevent herpes zoster (serpiginous pemphigoid) Nutritional factors: For patients over 60 years old, make sure that you have three meals of fruits and vegetables. Vitamin A is very important and related to immunity. Combine work and rest to improve resistance: balanced nutrition, adequate sleep, healthy psychology. 3. Identification of occult herpes zoster (serpentine) Characteristic rash – diagnostic determination Some people do not have a rash, what to do? First, it’s not time; what if the rash doesn’t appear when the time comes? Be sure to rank the possible causes of the pain. 4. Involvement of motor function 10% of patients with herpes zoster (serpentine) have motor function involvement, especially in the nerves of the upper and lower extremities, which can make the patient unable to lift their arms and limp. Nerve block treatment must be performed as early as possible to reduce nerve damage, and there are many successful cases that have cured or reduced the patient’s disability. 5. Is herpes zoster (serpiginous pox) contagious Compared to chickenpox, which is more contagious and spread by the respiratory tract, herpes zoster (serpiginous pox) is caused by a recurrence of the virus hidden in the patient’s body and is much less contagious. Pregnant women and immunocompromised patients such as those with organ and bone marrow transplants and chemotherapy for tumors should avoid contact. The incidence of neuralgia sequelae The vascular and neurological functions of the elderly are far less than those of the young, so the young get well quickly and have fewer sequelae after getting sick, while the elderly have more neuralgia after the rash is healed. 60 years old has about 60% of the sequelae of neuralgia, and 70 years old has 70%, which is proportional to age. In some patients, neuralgia can last for several years or even more than 10 years.