The snake is also known as the “waist wrapping fire Dan”, “snake Dan”, etc., can be seen in the waist clusters of blisters with redness, swelling and pain. Patients should avoid spicy, greasy, sour and astringent food. It is mainly caused by the evil of dampness and heat. 1. Spicy food: the disease mechanism of patients with snake is mainly dampness-heat accumulation (dampness and heat in the body of each other). Eating spicy and warm foods such as chili peppers, ginger, mustard, garlic, etc. may cause irritating effects, thus causing pain and aggravating the condition. 2. Greasy food: Eating greasy food such as fatty meat, fried chicken and lard may lead to the accumulation of dampness, heat and toxicity in the patient’s body, thus affecting the recovery of the condition. 3. Sour and astringent astringent food: snake patients eat sour horn, yam, gravy and other sour and astringent astringent food, may lead to the patient’s qi and blood can not be blocked, the body of the evil venom is not out, thus aggravating the situation. Patients with entangled snakes should have a light diet and avoid spicy, greasy, sour and astringent foods to avoid aggravation of the condition. If there is any discomfort, consult a doctor in time.