Herbs that astringe the skin include calcined gypsum, white and white, blood exhaust, and red stone resin. Please use the medicine under the guidance of a physician. 1. Calcined gypsum has the efficacy of collecting dampness, regenerating muscles, astringing sores and stopping bleeding. It is used in the external treatment of ulcers, eczema, itching, burns and bleeding. 2. Bai He, with astringent hemostasis (using drugs with astringent effect to treat bleeding conditions), swelling and muscle effects. Used for hemoptysis, vomiting blood, traumatic bleeding, sores, swollen poisons, chapped skin. Should not be used with Chuanwu, Chuanwu, Caowu, Caowu, epiphyllum. 3. Blood exhaustion, with the efficacy of activating blood circulation, resolving blood stasis and stopping bleeding, and generating muscle and astringent sores. It is used in treating bruises, heart and abdominal stasis and pain, bleeding from trauma, and sores and ulcers. Anyone without blood stasis should be taken with caution. 4. Red stone resin, with astringent, bleeding, muscle astringent effect. It is used for prolonged diarrhea and dysentery, bleeding in stools, disintegration and leakage (excessive menstrual flow or dripping); external treatment of sores and ulcers that do not converge, wet sores with pus and water, etc. It is not suitable to be used with cinnamon. It should not be used with cinnamon.