The following points should be followed: 1. Dehydration should be prevented and corrected, and it is generally recommended to drink hypotonic oral rehydration salts to prevent and correct it. 2. Pay attention to regulating the gastrointestinal function, and probiotics such as Saccharomyces boulardii or bifidobacteria can be taken. 3. The patient’s diet should be managed well, with small and frequent meals, avoiding the intake of greasy and irritating foods. 4. attention should be paid to taking lactase to help digest lactose, as viral diarrhea is often accompanied by a lack of lactase. 5. montelukast should be taken on an empty stomach to stop diarrhea. 6. attention should be paid to good perianal and perineal hygiene to prevent secondary infections and diaper rash.