question: hi,  i am a lifetime sufferer of eczema, and i have allergies to fur, grass pollen etc. I have an acute headache almost instantly when i drink even a tiny amount of alcohol and it has been suggested that maybe i am allerigic to the fermentation process. also, when i eat blue cheese, my eczema becomes terrible.i am allerigic to penicillin. is it possible that i am allergic to yeast in general ( i have never cut out yeast entirely) thanks sue