When a 1-year-old baby vomits and has diarrhea, you should first suspend feeding the baby the original food and give a light diet. The baby’s abdomen should be kept warm, and probiotics and other medications can be applied under the guidance of a doctor. If the symptoms still do not improve or aggravate, it is recommended to seek medical treatment. 1-year-old baby vomiting diarrhea treatment specifically include dietary adjustments, pay attention to warmth, medication and other aspects: 1, dietary adjustments: first of all, you should temporarily feed the baby the original food, it is recommended to fast for about 4 hours to give the stomach time to repair. After the vomiting symptoms are relieved, you can boil the baby a more digestible vegetable porridge or noodle sheet, etc. to improve the child’s diet. Try to provide the baby with some semi-liquid food to replenish the baby’s water and electrolytes lost because of vomiting and diarrhea, and also to reduce the baby’s gastrointestinal burden; 2. Pay attention to warmth: pay attention to keeping the baby’s abdomen warm, because 1-year-old baby vomiting and diarrhea are mostly related to abnormal peristalsis of the gut. If the abdomen is cold, it will aggravate the symptoms of vomiting and diarrhea, so pay attention to keep the baby’s abdomen warm; 3, medication: if the 1-year-old baby vomiting and diarrhea is serious, you can follow medical advice to give probiotics for treatment, such as Bifidobacterium or Bacillus subtilis, etc., to regulate the intestinal flora, to help the baby’s gastrointestinal tract back to normal and relieve the symptoms of discomfort. Babies with severe vomiting and diarrhea can also consume oral rehydration salts to replenish lost water and electrolytes, and apply medication such as montelukast as prescribed by the doctor to relieve the symptoms of diarrhea. If necessary, the stool can be tested to determine whether there is blood, pus or other pathogenic bacteria in the stool and given oral antibiotic treatment. 1-year-old baby vomiting and diarrhea, it is recommended that the baby be taken to the hospital in a timely manner to check the cause, so that the professional doctor can determine and give the corresponding treatment.