Eat greasy cold food on the phenomenon of diarrhea is mostly gastrointestinal dysfunction, clinically known as functional gastrointestinal disease, commonly used drugs, including domperidone, piperidine amine, probiotic preparations and so on. Gastrointestinal dysfunction caused by diarrhea caused by gastrointestinal absorption disorders, patients can choose under the guidance of the physician to promote gastric dynamics of drugs such as domperidone, mosapride and so on. Diarrhea is more serious people can choose piperidine and other antidiarrheal, can also be used at the same time probiotic drugs, to reduce visceral hypersensitivity and inflammatory response, the general diarrhea patients in the use of a period of time after the adverse effects can be reduced. While on medication, patients can avoid damage to the gastrointestinal tract from smoking, alcohol, and NSAIDs by improving their lifestyle habits. Avoid eating foods that can trigger symptoms, and try to eat small meals and avoid eating a large amount of food at once to reduce the burden on the gastrointestinal tract. If symptoms are severe or persist, go to the hospital for treatment.