Four-month-old babies with foamy diarrhea, consider the presence of indigestion. At this time, you can give the baby to take Mommy love, probiotics, regulate the baby intestinal flora imbalance. If the baby is breastfed, it is recommended that the mother’s diet should be easy to digest, fluid, semi-fluid, light diet, avoid spicy stimulation, greasy food. If the baby is formula-fed, the formula should not be too thick, too thin or too cold, and should be taken in small meals. If the baby’s diarrhea is more obvious, you can give the baby to take Montelukast to stop diarrhea treatment. At the same time, pay attention to ensure that the baby’s abdomen warm, do not get cold, if necessary, can be infused to supplement energy and nutrition, to prevent dehydration and electrolyte disorders.