Amaranth can clear heat and detoxification, cool the blood and reduce swelling, can treat eczema, single decoction of this product for internal use and external wash, and then freshly mashed and applied externally. However, the efficacy of single Chinese medicine is limited, and can be combined with other Chinese medicines, such as Chonglou, fist ginseng, dandelion, etc., to enhance the therapeutic effect. Amaranth is cold in nature, sour in taste, belongs to the liver, large intestine meridian, has the effect of clearing heat and removing toxins, cooling the blood to stop bleeding, dysentery, used for the treatment of feverish blood dysentery (dysentery caused by feeling the heat, see blood in the stool), carbuncle, boils, eczema, dengteng (acute infectious disease, see the skin is red like paint), snake bites, blood in the stool, hemorrhoids blood, leakage (menstrual bleeding or drip drip drip drip drip drip drip drip blood, and so on. If the blisters of wet sores are eroded and oozing obviously, it can be used externally with decoction of amaranth, cypress, wild chrysanthemum, raw ground elm, etc., which can promote the recovery of epidermis. Adverse reactions and contraindications of amaranth are not clear, spleen and stomach cold, intestinal slippery for leakage should not be served. Medicine such as the need for medication is recommended to be used under the guidance of a traditional Chinese medicine practitioner to identify the evidence, unauthorized use of drugs may cause adverse consequences.