Really? Have you tried take lactose pills (Lactaid) before drink milk or eat ice cream?
I can eat ice cream or drink milk with lactose, also I can get bad diarrhea and cause my butt to dry up, that's not comfortable to work with like that, blah...
I had took lactose pills and don't work so well, still got bad diarrhea then fuck it.
If my smotach is hurt so enough then Rolaids multi-symptom does help alot...
I love milk from Lactaid, that's taste better than soy milk.