Babies with recurrent diarrhea can take montelukast, lactobacillus tablets, rectified intestine, and bacillus subtilis for regulation. For recurrent diarrhea, parents can let their babies take some montmorillonite dispersion, which can help improve the absorption and secretion of intestinal cells and adjust the motor function of the intestine, and also absorb the bacteria and viruses in the intestine, so that these pathogenic bacteria lose their pathogenic effect, which can control diarrhea and shorten the course of the patient’s illness. At the same time, attention should also be paid to the use of intestinal probiotics to help regulate the imbalance of intestinal flora and increase the function of the intestine. Lactacystin tablets can stimulate the secretion of antibodies in the intestine and promote the growth of beneficial intestinal bacteria, and also regulate the intestinal water-electrolyte balance to help relieve diarrhea symptoms. After supplementation, it can inhibit staphylococcus and yeast in the intestinal tract, and promote the growth of beneficial bacteria to regulate the imbalance of intestinal flora. Bacillus subtilis is a beneficial intestinal bacteria, which will not cause side effects to human body and can regulate diarrhea and constipation caused by improper diet and antibiotic abuse.