It is caused by the accumulation of damp-heat fire poison on the skin, so patients with herpes zoster should avoid spicy and warm food in their diet. Foods such as fat meat, caramel, milk and sweet taste are mostly greasy, and the products that tend to make the damp-heat toxic evil of the disease not astringent are peas, Gordon Euryale, pomegranate, taro and spinach.

Avoid spicy fishy smell and hair products, such as chicken, dog meat, shrimp, crab, pig head, goose and sweet and greasy products. It is advisable to eat light products with heat-clearing and detoxification functions, such as mung bean sprouts, white gourd, cucumber, watermelon, loofah, Chinese cabbage, fresh lotus root, Malantou, leek and celery.