Diarrhea in children is a group of clinical syndromes caused by many pathogens and factors, mainly diarrhea. The onset age is mostly below 2 years old, and about 50% is below 1 year old. Almost every baby has diarrhea more than once, especially the baby. When the baby vomits and diarrhea, the mothers are very anxious, hoping that the baby can get better soon. For the healthy growth of babies, mothers should know more about their children's diarrhea, so what medicine should children take for diarrhea? A large number of studies show that there is intestinal microecological imbalance in viral enteritis, which is characterized by the obvious decrease of normal anaerobic bacteria, especially Bifidobacterium, and the degree of decrease is closely related to the severity of clinical manifestations. Children's diarrhea also has flora imbalance such as decreased anaerobic bacteria and increased intestinal bacteria. Therefore, the imbalance of intestinal microecology is the main cause of diarrhea. Microecological therapy is to directly supplement live beneficial bacteria or promote the growth of protobacteria, inhibit the invasion of foreign bacteria, improve the microecological environment, stimulate the immune activity of the body, and thus enhance the human body's ability to resist diseases. So what medicine do children take for diarrhea? Siliankang tablet is a quadruple viable tablet of Bifidobacterium, Lactobacillus acidophilus, Enterococcus faecalis and Bacillus cereus in infants, which can reach the intestinal cavity by oral administration and directly supplement normal beneficial bacteria in human body. Lactobacillus acidophilus, Streptococcus faecalis and Bacillus cereus consume oxygen to propagate in the intestine, and the colonization time is different, which can provide an anaerobic environment for Bifidobacterium and promote the growth and reproduction of anaerobic bacteria such as Bifidobacterium. Bifidobacterium is the dominant bacteria in the normal intestinal flora of infants. Its existence and quantity have an important influence on the physiology and health of infants. It participates in the process of digestion, nutrition, metabolism, absorption, immunity and anti-infection of the host. Bifidobacterium can form a protective film in the intestine to prevent pathogenic bacteria from invading the human body; And occupy most of the space, so that pathogenic bacteria have no place to stand. At the same time, Bifidobacterium can produce toxic substances such as acid and lactic acid and excrete them in time, thus ensuring intestinal health and effectively preventing diarrhea. Bacterial enteritis needs to cultivate intestinal anaerobic bacteria while using antibiotics to inhibit and kill bacteria, which can shorten the course of disease and have better curative effect than using antibiotics alone. Therefore, Siliankang tablets are a good choice for children with diarrhea. The results showed that the effective rate of Siliankang tablets in treating infantile diarrhea was 93.65438 0%. It can be seen that Siliankang tablet is effective in treating infectious and non-infectious diarrhea in children, and has no obvious adverse reactions, so it is worth using.