Mangosteen leaves can be combined with Zhimu, Gypsum, and Rehmannia to treat heat illnesses that injure the body fluid, thirst and heartburn. Mangosteen leaf is the dried stem and leaves of Mangosteen, family Gramineae. It is sweet, light and cold in nature, and belongs to the heart, stomach and small intestine meridians. It has the effects of removing vexation and quenching thirst, clearing heat and diarrhea, and diuretic and diaphoretic (to improve the problem of dribbling urine, and the problem of insufficient urine volume and inability to pass urine). It can be used for treating fever and thirst, and is often combined with Zhi Mu, Gypsum and Rehmannia to treat fever and thirst. This product can also be used for mouth and tongue sores, urinary shortness and redness (small amount of urine, dark yellow in color) astringent pain, often used in combination with Mutong, Dengxin Cao, Talcum officinale, etc., to treat shortness and redness and astringent pain of urine when the heart fire moves down to the small intestine, or mouth and tongue sores when the heart fire inflames the mouth and tongue. This product should not be used by people with yin deficiency and fire exuberance, or with bone vaporization and tidal fever (a burst of heat, feeling that the heat is coming from inside the bone to the outside), and the adverse effects are not yet known. Do not use the drug by yourself, please use it under medical supervision.