I'm sorry to hear about the blue...I have asthma, and Mucinex is the only drus that helps with congestion...it's blue. Thank heaven I don't get that horrid rash with that. But I know bout the itching. I recently took a replacement drug for my GERD...Rabeprazole, which had Yellow #5 in it. I have spent the day on Allegra 180 as well as benadryl topical to help the itching. I also tend to get very nauseated when I injest either dye. My point is this: the human race can handle white pills! It makes me very angry to have to get stuck with a an iv needle evey 2-3 days just because Bayer can't find a way pf making penicillin white! My veins are scarred, and it's getting harder and arder to find a viable vein for the iv. HELP!!!