If probiotics and lactase are added, and the baby still has diarrhea after eating breast milk, it should be fed with lactose-free diarrhea milk powder, because lactose-free diarrhea milk powder does not contain lactose, so the baby will not have diarrhea after eating it.
In this case, Ma Bao doesn't need to worry too much, because lactose-free milk powder can grow up healthily, and with the baby's growth, the digestive system will continue to develop and mature, and later there will be lactose tolerance, so that breastfeeding can continue.