Diarrhea is diarrhea. Diarrhea may be caused by physiological factors such as overeating cold and can recover on its own. It may also be acute gastroenteritis or gastrointestinal flora imbalance and other pathologic factors, generally used medication, such as oral norfloxacin, montelukast, Saccharomyces boulardii. 1. Physiological factors: cold food stimulates the mucosa of the gastrointestinal tract, resulting in low gastrointestinal function, causing diarrhea, generally by stopping the consumption of cold food, while hot compresses on the abdomen, to a certain extent, is conducive to alleviating the symptoms of diarrhea. 2. Pathologic factors: (1) Acute gastroenteritis: the gastrointestinal mucosa is destroyed due to viruses and bacteria, and the defense ability is reduced, which affects the digestion and absorption function and leads to diarrhea. Diarrhea can be treated by oral norfloxacin and other antibiotics to inhibit gastrointestinal bacteria and montelukast to repair the gastrointestinal mucosal barrier. (2) Gastrointestinal flora imbalance: Due to the imbalance of normal flora in the digestive tract, the growth of many pathogenic microorganisms leads to diarrhea. Probiotics such as Saccharomyces boulardii can be taken orally to inhibit the growth of pathogenic microorganisms and treat diarrhea. Diarrhea symptoms are serious and cannot be relieved on their own, do not self-medicate, need to actively go to a professional hospital, by the doctor’s scientific diagnosis and treatment, follow the doctor’s prescription medication, so as not to delay the condition.