Three times a day diarrhea may be related to physiological causes of cold, if the child is relatively young, you can first take montelukast, probiotics and other drugs, while need to pay attention to the situation of urine, and then diligently measure the body temperature. If the child has a fever, it is best to check the blood routine, as well as stool routine, to determine whether it is a bacterial or viral infection, under the guidance of the doctor to standardize the application of antibiotics anti-infection treatment. If necessary, infusion may be needed to avoid other complications, such as myocardial damage, water and electrolyte disorders.