I used to be allergic to alcohol, but it wasn't actually the alcohol it was something in it. I went on a cleansing diet, for about a month. I avoided sugar, yeast, wheat, gluten (most carbohydrates). After this diet I was able to drink without getting smashed on 1 drink. There are a lot of people who are allergic to certain foods, and because of that they will become sensitive to other foods. I don't fully understand it, but you may want to look into a cleansing diet. There is way to much processed foods in our diest as it is, whole foods can never hurt you...