Infant diarrhea is not recommended to take montelukast all the time, acute diarrhea is recommended to take 1 day, chronic diarrhea is recommended to take 2~3 days, symptoms can not be relieved when it is recommended to seek medical treatment. Montelukast has a fixed and inhibitory effect on viruses and bacteria in the digestive tract, and is usually used to treat acute and chronic diarrhea in adults and children, but children with acute diarrhea to take 1 day, chronic diarrhea, take 2~3 days after the symptoms do not improve, it is not recommended to take, you can consult a doctor under the guidance of the adjustment of the treatment, a large amount of long-term use may cause constipation. Infant diarrhea may be associated with indigestion, bacterial infection, viral infection, cold and other factors, it is recommended that timely access to the hospital, under the guidance of a physician to identify the cause of the disease, and then the relevant treatment, strictly comply with the doctor’s instructions for medication.