The whole grass function of Hedyotis diffusa of Rubiaceae is mainly used for clearing away heat and toxic materials; Diuretic. Main lung heat, asthma and cough; Sore throat; Intestinal carbuncle; Furuncle, swelling and sores; Snakebite; Heat stranguria and astringent pain; Edema; Dysentery; Enteritis; Damp-heat jaundice; Cancer returns to the heart; Liver; Spleen; Large intestine meridian

Oral administration and dosage: decocted, 15-30g, with a large dosage of 60g；; Or mash the juice. External use: tamping.