The chemical name of Mangnit is sodium sulfate, with more than 10 crystalline water. Mannite and sodium chloride are both sodium salts, and in traditional Chinese medicine, it can be taken orally to increase the fluid in the intestines, and has the effect of draining heat and laxative. Mannite can also be used externally to disperse carbuncles, and can also soften and disperse knots. Adhesive intestinal obstruction is also a good effect of external use of Mannite. Urological use of manganese, mainly with its diarrhea effect, can be through the diarrhea of the intestinal tract of the accumulation of heat, so that the accumulation of heat faded to reduce the accumulation of heat into the stone, for the urinary stone or intestinal obstruction can be applied to the treatment of manganese.