Diarrhea symptoms: The first symptom is sudden vomiting, regardless of feeding any food, such as milk, rice porridge, drinks, etc. are all vomited within a few minutes after eating. Even the feeding of plain water almost all vomited. Soon after vomiting, the number of stools increases, and the stools are mainly watery, light yellow in color and egg-flake soup-like, without acidic odor. Some children have a moderate fever, with a temperature of 37-38 degrees, and those with abdominal pain may be irritable and crying. Vomiting lasts up to 2-3 days. However, diarrhea lasts for 5-7 days, with individual children having diarrhea for more than a week. Most of the stool microscopy is normal or has a very small amount of white blood cells. Second, the causes of diarrhea: 1, poor regulation of nervous system functions, prone to intestinal dysfunction; 2, immature development of the digestive system, poor digestive capacity; 3, poor defense against infection; 4, due to rapid growth and development, the need for nutrients, so that the heavy burden on the digestive tract; 5, infection factors intestinal infection bacteria, viruses or extra-intestinal infection (otitis media, epiglottis, pneumonia, urinary tract infections, etc.) caused by; 6, non- Infectious factors improper feeding (too much, too little, sudden change of diet variety), allergy to milk and other foods, cold in the abdomen, etc. 1. Dietary requirements: reduce food intake, easy to digest diet, and give enough liquid to prevent dehydration. 2, control of infection: bacterial enteritis can be selected according to the pathogenic bacteria antibiotics, commonly used ampicillin, gentamicin, etc.. Viral enteritis generally does not require antibacterial drugs. 3, the application of Lactobacillus casei preparations: so that the bacteria in the intestinal tract to multiply to inhibit E. coli, has a better effect without side effects, and can enhance appetite, improve digestion and absorption function. 4, microecological therapy: restore the ecological balance of the normal intestinal flora, more use of Echinacea, Mamma, etc. 5, Chinese medicine: mild cases can be used Baohe Wan, serious cases can be used Ge Gen Erlian Tang, nutrition is not good for a long time diarrhea can be used Senmao Baijusan. Fourth, dietary care: infants and children with diarrhea to maintain intermittent feeding will help repair the damage to the intestinal mucosa, shorten the course of the disease, but also to prevent diarrhea for a long time. During diarrhea, in addition to giving the child the necessary breast milk, cow’s milk and thin rice porridge can be.