Precautions for patients with herpes zoster include: 1. Eat a light diet with more vegetables, including honeysuckle or chrysanthemum water, etc. to clear heat and detoxify the body. Do not eat greasy foods, avoid spicy and stimulating foods including ginger, garlic, etc., or foods that help damp heat such as hoisin soup, hot pot and chili, as well as seafood, tobacco and alcohol, etc., to avoid damp heat accumulating in the body and producing the herpes virus. There is no need to take sour and cold foods. The actual dampness in the body can be caused by the dampness in the body; 2, keep a happy mood and get enough sleep; 3, dry the bedding regularly to drive away the indoor dampness, etc.