Baby is lactose intolerant, will taking lactase help right away?

Patient's question:

No

Doctor's answer:

The child's diarrhea from regular formula is caused by a lack of lactase in the intestines, which leads to the inability to digest sugars. Lactose-free formula has had the lactose component removed, so the child's diarrhea symptoms will improve. You can give the child oral lactase to digest sugars. For yellow watery stools, you can take Montmorillonite orally to protect the intestinal mucosa.