The upper heat and lower cold can eat astragalus, but the Chinese medicine mainly through the combination of the use of joint to play a therapeutic effect, single astragalus can not treat the upper heat and lower cold evidence, should be in the guidance of traditional Chinese medicine, follow the instructions of the doctor to use the drug. Upper heat and lower cold is a type of Chinese medicine, in which the upper part of the body shows symptoms of heat and the lower part of the body shows symptoms of cold. Clinical symptoms include irritable heat in the chest (irritable and stuffy heat), nausea, vomiting, abdominal pain and warmth, and loose stools. The treatment of this syndrome should take the method of clearing up and warming up the lower part of the body (clearing away the evil heat in the upper part of the body and warming up the cold in the lower part of the body). Astragalus has the functions of strengthening the spleen and tonifying the middle, elevating yang and lifting up the sun (elevating the yang qi of the body to lift up the sunken organs), benefiting the guards and fixing the surface (tonifying the guards and guarding the human body’s surface), diuretic, and supporting the toxin to generate muscles (discharging the toxins and evils and promoting the growth of the muscles and healing of the wounds), and so on. Clinical treatment of spleen qi deficiency, lung qi deficiency, qi deficiency sweating (involuntary sweating during the day, a little sweat aggravated), qi and blood deficiency (qi and blood deficiency), sores and ulcers difficult to ulcerate difficult to putrefy, or ulcers and ulcers difficult to converge and other diseases. Where the surface of the real evil (the body surface of the evil overflowing), sores and ulcers at the beginning, or after the collapse of the heat and toxicity is still prevalent, should not be used. If relevant symptoms occur, consult a doctor in time and use the medicine under the doctor’s guidance.