Sheng Di Huang has a sweet, bitter flavor and is cold in nature. The drug is not toxic. Raw Dihuang is the tuberous root of Dihuang (地黄), a plant in the Xuanzang family. The drug is sweet, bitter and cold in nature, and enters the heart, liver and kidney meridians. It has the effects of clearing heat and cooling blood (relieving blood heat by clearing heat), nourishing yin and generating body fluid. It can be clinically used in the treatment of yin deficiency and fever, thirst, vomiting of blood, epistaxis, hematochezia, menstrual disorders, fetal restlessness, and constipation due to yin injury. In conclusion, the drug does not have toxicity, but when using it, it should be noted that it should not be taken by those who have dampness in the spleen and stomach, and those who have yang deficiency and phlegm in the chest and diaphragm. If you need to use raw dihuang, it is recommended to go to a regular hospital, under the guidance of a professional physician to identify the evidence of the treatment, not to take on their own, so as not to cause adverse consequences.