Drug: white fruit Method: Wash the affected area with warm water (without soap) every night before going to bed, cut the seed kernels of white fruit with a knife and apply to the affected area frequently. Medication: Inoceramus Method: Take 30 grams of Inoceramus, add 500 ml of water, soak for 15 minutes, decoct for 20 minutes over moderate heat, take 350 ml of juice orally in two doses for 10 days as a course of treatment. Medication: Amaranthus method: Take 30 grams of Amaranthus, wrap it in gauze and soak it in 3 liters of cool water for 30 minutes, and make 8-12 layers of gauze pads according to the size of the affected surface. Put the gauze pad into the soaked solution and boil it for 30 minutes. Cool the boiled solution to 40℃～60℃, the operator wears sterile gloves and wrings the gauze pad until it does not drip, and apply wet compresses to the affected area, keeping the temperature wet for 30 minutes. At least twice a day. Drug: Wild chrysanthemum Method: Fresh wild chrysanthemum, decoction of water to wash the face, 1 time each morning and evening. Drug: White flower and snake tongue herb Method: 30 grams of white flower and snake tongue herb, decoction in water.