Bacterial enteritis is a group of common intestinal infectious diseases caused by various pathogenic bacteria. In recent years, the incidence of enteric infections has decreased significantly with improved sanitation, but the incidence of infectious diarrhea remains high. Infant diarrhea is still one of the leading causes of infant mortality in most third world countries. Due to the relatively young age and low resistance of infants with bacterial enteritis, the choice of medication is generally more cautious. More drugs with fewer side effects are chosen, such as oral montelukast, probiotics, and currently, Saccharomyces boulardii, Bifidobacterium bifidum, Lactobacillus rhamnosus, and cephalosporin antibiotics can be chosen as third-generation cephalosporins.