Red beans alone boiled water to drink has a certain amount of qi and blood, clear heat and detoxification (clear the body of heat and poisonous evil) effect, but the effect is very limited. Red beans alone boiled water is difficult to play its full efficacy, often do not achieve the efficacy of the treatment of disease, it is recommended that under the guidance of a doctor, reasonable preparation, the correct simmering in order to achieve the effect of treatment. Red bean belongs to a kind of traditional Chinese medicine, taste bitter, sex flat, there is a small poison, for the leguminous plant red bean tree seeds, has the qi and blood, heat detoxification efficacy, the main treatment of heart and stomach gas pain, hernia pain, blood stagnation and menstrual closure, anonymous swollen poisons, furuncle (mostly occurring in the limbs or facial sores, the shape of the small root base of the deep, such as nails as hard). Red bean adverse reactions, contraindications, precautions are not clear. If red bean is used as a medicine, it needs to be used under the guidance of a Chinese doctor who can identify and treat the symptoms.