The baby has been diarrhea first to do stool routine examination, need to exclude enteritis and other infections caused by diarrhea. If the stool routine has white blood cells, antibiotics should be used; if the stool routine is normal, gastrointestinal disorders should be considered, so pay attention to the diet and try to eat less indigestible foods such as dairy products, fruits and egg yolks, and eat more light foods such as pasta and porridge. If the diarrhea is more watery, you can take Similac orally, which has the effect of anti-diarrhea and protecting the gastrointestinal mucosa, and is equipped with live bacteria drugs that regulate the intestinal tract, two drugs can be used to treat the child’s diarrhea.