Lost most of my seasonal allergies by being primal. Now when I cheat with corn I get really bad allergies the next day that even an allergy pill won't completely touch. Rice seems to be okay unless eating it every day, which I shouldn't anyways.
After my dairy elimination of 1 year, I found I can now do fermented dairy okay, but am still lactose intolerant. Although some dairy issues may be that I was just diagnosed with small intestinal bacterial overgrowth, so it may be that the sugar (milk sugar & otherwise) in non-fermented dairy could be my real culprit.