Diarrhea is often associated with unclean or cold food and lack of attention to abdominal warmth, so its treatment should also start from these aspects. If the diarrhea is caused by consuming incomplete food or not washing hands before meals, it is usually due to bacterial infection, and quinolone antibiotics such as levofloxacin and norfloxacin can be chosen for infectious diarrhea. If diarrhea is caused by over-eating cold food or fruit, or drinking iced drinks, the first thing to do is to stop the intake of cold food and drink hot porridge or brown sugar and ginger water to protect the stomach gas, so as to relieve diarrhea. If the abdomen is cold because of underdressed or under the effect of external cold, you can warm the abdomen with a warm water bag to relieve the spasm of the smooth muscle of the stomach and intestines, or you can drink hot porridge, such as brown sugar and japonica rice porridge, to take care of the stomach qi. There are many causes of diarrhea, if the condition is mild, it can be controlled by regulating one’s diet or living condition, but for long-term diarrhea patients, it is best to go for some relevant tests to rule out the possibility of other diseases and treat the symptoms.