Sophora has the effect of cooling blood and stopping bleeding (making blood cool and moist, preventing bleeding), but it is not recommended to drink water for a long time, which is easy to damage the spleen and stomach. Sophora has the efficacy of cooling blood to stop bleeding (making blood cool and moist, preventing bleeding), diarrhea and clearing the liver, and can be used for blood in stool, metrorrhagia (excessive menstrual flow or dribbling), vomiting, hemorrhoidal blood, dysentery, epistaxis, headache and dizziness, liver heat and eye redness, and other conditions. It should be used with caution in cases of deficiency and coldness of the spleen and stomach (spleen and stomach weak and cold), and deficiency of yin and fever without real fire. Sophora japonica is bitter and cold in nature, long-term use may damage the spleen and stomach, and the effective dosage of soaking in water is limited, making it difficult to play an effective therapeutic role, so long-term soaking in water is not recommended. Drugs should be used under the guidance of a professional doctor, do not blindly use drugs without authorization, so as not to cause adverse consequences.