I agree with John, all these different conditions are all related. I have AS, UC, psoriasis, and who knows what else. I had eczema and conjunctivitis both disappear when my GI put me on 6-MP for my UC. My Grandmother, brothers and at least one cousin all have similar health problems. I hope that someday they find an answer to all of this so that my granddaughters don't have to suffer like we have.