Dairy can be avoided at first and then slowly added back in in small amounts paired with sugar to i prove digestion. Or if dairy just plain doesnt work, take a calcium supplement.
This exact plan worked remarkably well with what i know think was some sort of colitis or sever ibs. I would get extreme pain in the lower right abdomen where the small intestine meets large. Havent had a flare up in months and my inflammation is gone.