The efficacy of Sophora japonica is to cool the blood to stop bleeding (cooling and moisturizing the blood to stop bleeding), and to clear the liver and diarrhea fire (removing the fire within the liver). The main treatment for blood in the intestines due to blood heat, hemorrhoids blood, blood in the urine and so on. Sophora japonica, mainly used as medicine for the dried flower buds and flowers of Sophora japonica, a leguminous plant. The drug is slightly cold in nature, bitter in taste, and belongs to the liver and large intestine meridians. It is commonly used in the treatment of blood in the intestines and bowels caused by blood heat, hemorrhoids, blood in the urine, hemorrhagic (blood in the urine with pain), epistaxis, carbuncle sores and ulcers, and so on. Sophora japonica is mainly taken internally by decoction, and it is generally suitable for raw use to cool blood and diarrhea, while charcoal of Sophora japonica or fried Sophora japonica is suitable for stopping bleeding. The adverse reactions of this drug are not clear, but those who are allergic to this product should not use it, note that pregnant women should avoid taking it, those who have spleen and stomach deficiency (spleen and stomach weakness and cold), those who have phlegm-dampness in the interior, and those who have yang deficiency and fever but no real fire, take acacia flowers with caution. It is recommended to use the drug under the guidance of a Chinese medicine practitioner to identify the symptoms, do not take the drug on your own, so as to avoid delays in the condition or adverse reactions.