Anyone who feels they are or might be allergic to wine, or allergic to sulfites in wine, or is simply curious about whether allergies are exacerbated (or not) by wine, or, for that matter, is simply bored at the moment, ought to read this wonderfully cogent post by Dr. Vino over at his blog. It's clear, direct, and cuts through a huge amount of the blather surrounding this subject. It's also well worth looking at the two National Institutes of Health papers (on histamines & wine and on sulfite reactions & wine) he mentions as well, especially if you don't mind a dose of science with your work down-time reading, as well as this one (also on histamines & wine, with a contrary position) which he doesn't.