Seven Star Grass, also known as Wawei, has the effect of clearing heat and removing toxins (removing heat and poison from the body), diuretic and stopping bleeding, and can be used to treat carbuncle, swelling and sores, as well as dysuria (unruly urination), gonorrhea and astringent pain and other illnesses. Seven Star Grass is the whole grass of the plant Wawei in the family of Daphniaceae. It is bitter and cool. It has the effect of clearing away heat and detoxification, diuretic and stopping bleeding. It can be used for the treatment of children’s fever and convulsion (pediatric disease with dizziness, convulsions, convulsions as the main manifestation), gonorrhea, dysentery, coughing and vomiting blood. It can also be used for the treatment of tooth chancre, calcined ash stored sex, applied; snake bites, carbuncles, pounded compress. The adverse reactions and contraindications of this drug are not clear; however, because it is a bitter-cold product, it should be used with caution in patients with spleen and stomach deficiency (spleen and stomach weakness and cold). If you need to use Qixingcao, it is recommended to use it after identification by a traditional Chinese medicine practitioner, and do not use it on your own to avoid adverse consequences.