Hello,
It is usually not the
alcohol that produces the allergic
reaction to the wine or beer. The other ingredients in the alcohol, such as yeast, sulfur dioxide, and additives are often the culprits. Beer may contain a variety of ingredients, including barley, corn, wheat, and rye that may precipitate an allergic reaction.Wine contains sulfites that can cause an allergic reaction.
ref:http://www.aaaai.org/patients/advocate/2006/winter/wineandbeer.