I’ve heard from someone who says he recently drank mulled wine on two occasions, and both times he broke out in a rash on his hands, face, neck and chest. He adds that he doesn’t have any allergies that he knows of. “What is it in mulled wine that could cause this?”
This is a tough one for a couple of reasons. First of all, this person didn’t say if he’s a regular wine drinker or not. Is mulled wine, which is a combination of red wine with various spices, served hot, his only experience with drinking wine? If so, he could be reacting to the sulfites or tannins in the wine itself. Sulfites in particular have been implicated in headaches and other negative reactions to drinking red wine; an allergic-type rash could certainly be one response. The only remedy, sad to say, is to give up drinking red wine.
On the other hand, if he has drunk red wine before without suffering a rash, then it is probably not the wine that is at the root of this problem. Rather, one of the spices in the mulled wine would likely be the culprit. The problem here is that mulled wine can be made by many different recipes, and there is no set list of spices or other ingredients that must be used.
That being said, we can note that one of the frequent ingredients in mulled wine is cardamom. Cardamom is known to produce contact dermititis, a type of rash, from touching people’s skin. I would think that such a product might well cause a rash, in a cardamom-sensitive person, from being ingested.
Cloves are another fairly common ingredient in mulled wine. Cloves may cause contact dermitis (rash) as well, so we can’t rule them out in this instance, either. (Other often-found ingredients in mulled wine include sugar, honey or molasses, vodka and brandy.)
In the end, though, it’s hard to know what might be causing this person’s rash. If he were willing to experiment, and knows exactly what was used in the mulled wine, he could try making several different batches, leaving out one ingredient each time. That way he could test, over and over, until he could identify when ingredients in the drink do and don’t cause his rash.

