Photo: rogersmj (Flickr)
The idea of one being allergic to the sulfites in red wine doesn’t make much sense since sulfites are used to preserve white wines as well.
Second, if you’re allergic to sulfites, then you should develop an allergic reaction to dried fruit too, which is also preserved with the use of sulfites.
If you get a rash after drinking red wine, then you’re probably reacting to the histamines. Histamines occur naturally in fermented products like wine, chocolate, and aged cheese.
A small percentage of people react to high levels of histamines, their reactions resembling allergic reactions to food.
Luckily, the histamines brought out by the process of fermentation come from the grape skins. Thus you should be able to drink white wine since it is made without the skins.