The side effects of Polygonum multiflorum are not yet clear, the specific use of medication to follow the doctor’s instructions. Polygonum is made from the whole herb of Polygonum multiflorum, which is pungent and warm, and belongs to the stomach and large intestine meridian, the herb has the effect of strengthening the spleen, transforming dampness, activating blood circulation, detoxification, and interception of malaria. It is often used in the treatment of sores and swellings, summer-dampness diarrhea, children’s chancre, bruises and injuries, enteritis and dysentery, malaria and other diseases. In addition, the drug can be used externally to treat snake bites, skin eczema. Contraindications and adverse effects of the drug are not clear at present. If necessary, it is recommended to go to a regular hospital, under the guidance of a professional physician to identify the evidence, according to their own situation, reasonable choice, not to take on their own, so as not to delay the condition.