Diarrhea and watery diarrhea with burping and odor are considered to be acute gastroenteritis caused by poor diet. The frequent symptoms are diarrhea, watery stools, acid reflux, belching, and loss of appetite. Anti-infection treatment should be given, and antibiotics should be chosen according to the cause. Pay attention to personal hygiene and eat mainly light, easy-to-digest, low-fat types of food. Quit smoking, alcohol and betel nut, drink less carbonated drinks with high sugar, strong tea and coffee, etc. Avoid eating raw, cold, hard and stimulating food. Appropriate use of intestinal flora regulating drugs to maintain a normal intestinal flora environment and repair the damage to the intestinal environment. Finally, we need to pay attention to oral hygiene, the mouth is rich in a large number of anaerobic bacteria, through the decomposition of food residues produce a large number of sulfide, this material will give off a sour smell of corruption.