Baby drinking yogurt diarrhea may be acute gastroenteritis, allergies and other reasons, can be treated by oral medication. 1. Acute gastroenteritis: if the baby accidentally drank expired yogurt, due to the deterioration of yogurt bacteria will cause acute gastroenteritis, abdominal pain, diarrhea and other symptoms, it is recommended to go to the hospital in a timely manner to the routine stool test, if determined to be a bacterial infection, and promptly given antibiotic treatment, such as cefixime particles, at the same time can be given to the montelukast to stop the diarrhea. 2. Allergy: If the baby is allergic to yogurt, there will also be drinking yogurt after abdominal pain, diarrhea and other symptoms, it is recommended that the baby do not drink yogurt in the future, if the symptoms are serious, you can take anti-allergy drugs such as cetirizine hydrochloride drops, the symptomatic use of montelukast to stop diarrhea treatment. If the baby drink yogurt after diarrhea, parents are advised to take the baby to the hospital in a timely manner, a clear cause of the relevant treatment, the use of the above drugs to follow the doctor’s instructions.