Children with vomiting and diarrhea are often due to acute gastroenteritis, food allergies and intussusception, and are usually treated with general therapy, medication and surgery. 1. Acute gastroenteritis: mostly caused by infected bacteria, viruses, fungi and other factors, nausea, vomiting, abdominal pain, bloating, diarrhea and other symptoms, at this time should pay attention to maintain adequate sleep, eat small meals, drink a small amount of oral rehydration salts. The application of montelukast to stop diarrhea, Clostridium typhimurium bifidum to regulate the intestinal flora, according to the results of fecal pathogen detection of the selection of the appropriate antibiotics, such as ceftriaxone, meropenem, and so on. 2. Food allergy: nausea, vomiting, abdominal distension, diarrhea and other symptoms can also occur, avoiding allergic food is the best treatment, but should pay attention to balanced nutrition, allergic reactions can be treated with cetirizine, glucocorticoids and other treatments. 3. Intussusception: children can have vomiting, abdominal pain, crying, diarrhea (jam-like stools or bloody stools), abdominal masses and other symptoms, perfect abdominal ultrasound, air or barium enema can be diagnosed, the treatment can be used air enema, barium enema and ultrasound under the water pressure enema reset therapy, by the above enema therapy is ineffective need for surgical treatment. There are many other causes of vomiting and diarrhea in children, and it is recommended to consult a doctor in time and give symptomatic treatment or therapy after the cause of the disease is clarified. All of the above medications should be used under a doctor’s supervision, avoiding self-medication.