If infants have fever and vomiting, there are several specific causes: 1. Acute gastroenteritis caused by improper feeding, or symptoms of fever and vomiting caused by indigestion, this situation requires control of the child’s diet, and at the same time can be combined with oral medication to help gastrointestinal digestion, such as stomachic and oral solution, according to the child’s temperature to give antipyretic treatment. If the body temperature is ≥38.5℃, antipyretic drugs can be given orally. If it is lower than 38℃, it can be combined with physical cooling.2. In case of rotavirus enteritis causing fever and vomiting, which is common in autumn and winter, antiviral treatment should be given along with antipyretic and corresponding rehydration treatment. If pediatric surgical diseases occur, such as acute appendicitis, depending on the child’s condition, treatment needs to be given at the hospital under the guidance of a surgeon.