Eczema is a common skin condition. It can occur throughout the year and is caused by a variety of reasons, manifesting mainly as inflammatory damage to the epidermis and dermis. There are often three types of eczema: acute, subacute and chronic. At first the skin rash or small blisters, burning and itching, scratching with fluid exudation, followed by drying, crusting, flaking, recurrent. In chronic cases, the skin is gradually thickened, with deepening and infiltration of skin lines, pigmentation, and tinea-like changes. The most common sites are the extremities, buttocks, anus, vulva, scrotum, etc. The treatment of eczema should try to find the cause of the disease and avoid triggers. The most important treatment is anti-inflammatory therapy, such as oral paracetamol, cycloheximide, loratadine and so on. Hormone therapy is not generally recommended. The topical application of furnace glycerine lotion is quite effective in relieving itching. Chinese medicine considers eczema to be related to dampness, heat, wind, blood heat and insect poison. Therapeutic medicine is administered according to the different manifestations of each patient. The diet should be rich in vitamins and minerals, such as mung beans, adzuki beans, winter melon, bitter melon, watermelon, radish, tomatoes, coix seed porridge, lotus root porridge, fruit porridge, etc. Ensure that the food is light and easy to digest and absorb. Avoid smoking, alcohol, spicy and hairy substances, such as onion, ginger and garlic, high protein, seafood and so on. According to each person’s physique, limit excessive water consumption. In particular, drink less beer. The basic formula of Chinese herbal topical cleansing is adjusted according to the actual condition of the patient, the lightness of dampness and heat. Tu Fu Ling 30g, Bai Shu Pi 30g, Sheng Da Huang 30g, Jin Yin Hua Vine 30g Zi Jing Pi 15g, Cang Zhu 30g Sheng Bai Bei 30g Bitter Ginseng 30g Decoction of water for external washing or sitz bath, twice a day.