Baby diarrhea and crying in the middle of the night can be helped by massage and good abdominal warmth, and if necessary, oral montelukast can be improved. Babies with diarrhea and food not digested, related to the mechanism in the stomach, some of them are caused by acute gastroenteritis, parents can properly massage the abdomen to relieve intestinal spasm and reduce diarrhea symptoms. It is necessary to pay attention to keep the abdomen warm and avoid getting cold. Getting cold will lead to imbalance of intestinal flora, local ischemia and hypoxia, which will aggravate the diarrhea symptoms. Montelukast is a common antidiarrheal drug that can inhibit the replication of harmful bacteria in the intestine, protect the gastrointestinal mucosa, and improve the absorption and secretion function of gastrointestinal cells. Entering into the intestine can use the drug’s own laminar structure to adsorb bacteria and toxins in the intestine, promote stool formation and achieve a good antidiarrheal effect.