Two month old babies with watery stools may be caused by abdominal cold or milk protein allergy, intestinal flora disorders, etc. They can be treated by dietary adjustments, oral medications, and so on. 1. two month old babies have watery stools, may be due to abdominal cold or milk protein allergy, if breastfeeding, the mother should adjust the diet, avoid eating milk and milk products, avoid eating food with high animal protein content, if formula feeding, need to be replaced with amino acid milk powder or deeply hydrolyzed protein milk powder feeding. 2. If the baby watery stool is caused by intestinal flora disorders, you can take oral intestinal probiotics to regulate the intestinal tract, such as bifidobacteria, lactobacillus, etc., to improve intestinal digestion, alleviate the symptoms of watery stool. When the diarrhea is severe, montelukast can be given to stop the diarrhea. There are other reasons why two-month-old babies have watery stools, such as acute enteritis, and so on, so you need to take your baby to the pediatrician’s office to find out the cause of the disease and actively treat it. The above drugs need to be used in accordance with medical advice.