The efficacy of Radix Angelicae Sinensis is to clear the heart, promote diuresis and nourish the yin. Radix Angelicae Sinensis (导赤散) is from “小儿药证直诀”, which consists of Radix Angelicae Sinensis (生地), Radix Angelicae Sinensis (木通), Rhizoma Polygoni Multiflori (竹叶), and Rhizoma Glycyrrhizae Praeparata (甘草). Radix et Rhizoma Glycyrrhizae is cold and moist, cooling the blood and nourishing the yin to control heart fire, while Mutong enters the heart and small intestine meridians. The two medicines are compatible to nourish yin to control fire without attracting evil, and diuretic to relieve water and lymphatic discharges without harming yin. Bamboo leaves guide heart fire downward, as the subject medicine. Sheng Gan Cao Ting has the function of clearing heat and removing toxins (removing heat and toxins from the body) and harmonizing various medicines (harmonizing the medicinal properties of different Chinese medicines). Lead Chi San is mainly used for treating heart meridian fire-heat syndrome, which is characterized by irritability and sultriness in the heart and chest, thirst and red face, fondness for cold drinks, as well as sores on the mouth and tongue, or heart-heat moving to the small intestines, deep red color and stinging pain in the urine. Lead to loose adverse reactions are not yet clear, contraindications are not yet clear, precautions are not yet clear. If you need to use the drug 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.