Can Alcohol Be The Cause For Rashes Along Hairline And Temple? Could It Be Dermatitis Or An Allergy?

I am 26, 5ft9, slim and a non-smoker. Within the last year I started developing this rash along my hairline and on my temples that I thought was an irritation from leaving face wash in my hairline in the evening (by mistake) or not washing out my shampoo properly. Then I thought it was dermatitis or a stress related rash. It seemed to improve and then I went out for 2 beers and my rash returned over night. I didn t drink a serious amount but drank a lot when I was a teenager (I enflamed my liver and caught glandular fever) and since then I have generally drank on average twice a fortnight. So I cut out beer, then later cider, wine and vodka. The rash seems to focus above my left eyebrow and temple these days but haven t let it spread any further. I ve decided to quit alcohol for now because if this is an allergy I don t want to develop any serious reactions from continued use. I live very healthily and I am not on any medication other than a contraceptive implant. Please could you advise me on how to be more specific. Quitting alcohol may be a bit drastic but it s working for now. Is it common to develop an allergy to alcohol over time? Are there ingredients I should look out for that may also be used in food? I don t seem to have any issues with wheat and haven t had any symptoms since quitting alcohol. I don t really want to have to quit alcohol, I would like to be able to have a casual drink if I choose to and would like to know more about this before I test myself with any other alcoholic drinks.