Herpes zoster, commonly known as snake around the waist, is a common viral skin disease in life. The elderly should pay attention to the nutrition of diet, eat more bean products, fish, eggs, lean meat and other treasures and fresh fruits and vegetables rich in protein, so as to keep fit and prevent various diseases directly or indirectly related to this disease. Take more rest, give a digestible diet and drink plenty of water. Diet, avoid greasy, seafood, eggs, poultry as far as possible not to eat, eat some light food. Patients with herpes zoster should be vegetarian, eat more high-fiber foods, and eat more watermelons and oranges. It is best to soak lemons in water every day. Lemon juice can also be used to wipe a rash. Do not eat fried, fishy, spicy and hairy products, mainly referring to all fish and aquatic products, such as mutton, chicken, beef, cucumber, leek, coriander, Toona sinensis and so on.