Montelukast can be taken orally by putting it in milk powder. Because montelukast is a medicine for pediatric diarrhea, but it does not taste particularly good when taken directly with water, many children are reluctant to take montelukast. For a therapeutic purpose, montelukast can be put into milk powder for oral administration. In addition to oral medication, children with diarrhea also need to be adjusted through diet and other means. The medication can be montelukast, and the diet can be diarrhea milk powder, or children who can drink porridge or eat rice flour can choose to drink porridge or eat rice flour, which is more conducive to the recovery of the stomach and intestines. At the same time, it can be combined with abdominal massage, as well as Chinese acupressure, Chinese medicine to stop diarrhea paste and other drugs together to treat pediatric diarrhea.