Children's autumn diarrhea can be improved by eating some steamed apples or oral rehydration salts and using montmorillonite powder. Autumn diarrhea is directly related to rotavirus infection, which is a self-limiting disease. Even without treatment, the condition can be improved in a week or so. When diarrhea occurs, parents can steam apples for their children. Steamed apples have astringent and antidiarrheal effects, which can relieve diarrhea symptoms and provide nutrients needed by human body. Because diarrhea in autumn can lead to dehydration, you should pay attention to replenish water to your body during illness, and if necessary, you can prevent dehydration by taking rehydration salts orally. For people with severe diarrhea, montmorillonite powder can also be used for treatment. Montmorillonite powder will not be absorbed by human body and will not affect children's physical development. It can also improve the function of intestinal system, delay intestinal peristalsis and improve diarrhea.