Capsaicin is an over-the-counter drug in the laxative class and is a colorless, syrupy solution. The base composition is a highly concentrated solution containing glycerin or sorbitol. It can lubricate and stimulate the intestinal wall, using the principle of hypertonicity, causing water molecules outside the intestine to pass through the intestinal mucosa and be absorbed into the intestines, so that a large number of water molecules appear in the intestinal tract, which softens the stools and reflexively induces a defecation response, making it easier to expel the stools from the body. The main purpose of Kefir is to stimulate the intestinal wall to cause defecation reflex, in order to relieve constipation. However, if used frequently, it will make the rectum become more and more insensitive to the stimulation of the drug, so that the effect of using the drug is getting worse and worse, and because under the effect of hypertonicity, water is absorbed into the intestinal tract through the intestinal mucosa, which also causes the dryness of the intestinal wall, and its frequent use will cause habitual constipation. So in the clinical application of Keserol is mainly used for fecal incontinence and the need for rapid laxative, such as long-term bedridden patients and patients to do preoperative preparations, are only as a temporary relief of the pain of the auxiliary agent. For pregnant women and children is not suitable for long-term use of Kai Sei Nou.