The time for pediatric diarrhea to heal itself depends on the cause of the diarrhea, the severity of the condition, and the treatment, and should be analyzed specifically, not generalized. If the pediatric diarrhea is due to viral infection, most often seen in rotavirus infection, self-limiting. If the diarrhea symptoms are mild, the virus is usually excreted from the feces in large quantities within 1-3 days after infection, and the disease can be cured in about 7 days. If the diarrhea is severe and the mental state is poor, accompanied by high fever, dehydration and other symptoms, it is not recommended to wait for self-cure, should be timely under the guidance of the doctor to apply drugs to stop diarrhea as well as rehydration therapy. If the pediatric diarrhea is due to improper diet, usually 7-10 days since the cure, can also be appropriate to give probiotic drugs to regulate. During the period of pediatric diarrhea, it is recommended to strengthen the care, drink more water, diet to liquid food, avoid eating high sugar, high fiber or greasy, indigestible food, so as not to aggravate diarrhea.