Nausea and vomiting in children are considered to be related to acute gastroenteritis, respiratory tract infection or irregular diet. Parents can promptly take their children to the hospital to identify the cause and treat the symptoms. Common causes 1, acute gastroenteritis: children’s poor body resistance, eating unclean food, gastrointestinal infection by bacteria and viruses, resulting in acute gastritis, the main symptoms of nausea, vomiting, even accompanied by fever, etc.; 2, respiratory tract infection: children due to bacterial, viral infections resulting in respiratory tract infection, nausea, vomiting, dizziness, mental discomfort and other symptoms; 3, irregular diet: children Gastrointestinal function is unstable, after eating undigested and overeating, the symptoms of nausea and vomiting will easily appear. Treatment 1. For children suffering from acute gastroenteritis, parents should promptly take them to the hospital for examination and take drugs to promote digestion and regulate intestinal flora under the guidance of the doctor, and take cefixime or amoxicillin for anti-inflammatory treatment if necessary. For children with diarrhea, oral montelukast can be given as prescribed by the doctor to improve diarrhea symptoms; at the same time, parents should pay attention to feeding rehydration salts to their children to prevent dehydration; 2. When nausea and vomiting are caused, parents should pay attention to whether the child has fever symptoms, if the child is in good spirits and no other discomfort, appropriate dietary adjustments can relieve the symptoms. Note that if the child vomits violently, it is necessary to rehydrate in time to prevent water-electrolyte disorders caused by excessive water loss.