Symptoms of vomiting, fever and diarrhea in babies are signs of acute gastroenteritis. This condition may be due to the ingestion of unclean food and is related to pathogenic infections such as intestinal rotavirus or E. coli. It is recommended to treat the condition with some anti-inflammatory and anti-infective drugs as well as anti-diarrheal and anti-fever drugs. It is recommended to take oral rehydration salts to prevent dehydration, and to take montelukast to stop diarrhea when it is severe. In addition, if the fever is low, you can apply antipyretic patches for physical cooling. If the temperature is high, more than 38.5℃, it is recommended to take ibuprofen suspension drops to reduce fever. During the illness, you also need to pay attention to more sugar and salt water, and eat more light and easily digestible food. Do not eat greasy, cold and stimulating food. Pay attention to washing hands regularly and maintaining personal hygiene.