If vomiting and diarrhea are considered to be acute gastroenteritis, the infant should be given light, easily digestible food. For example, give thin rice, rice paste, noodles and other easily digestible food. Supplementary foods can also be added appropriately, green vegetables, vegetables and fruits are not convenient to give for the time being, and spicy, stimulating and greasy foods are not suitable for the time being. At the same time, intestinal probiotics can also be given appropriately to regulate the intestinal flora. Montelukast can be given under the guidance of doctors to protect the gastrointestinal mucosa, and zinc supplementation can be given appropriately to promote the repair of the gastrointestinal mucosa. You can also increase the rehydration and maintain the water-electrolyte balance and other treatments. It is recommended to replenish the infant’s water intake by adding a small amount of sugar or salt, you can take pediatric rehydration salt, and also pay attention to drink a small amount more.