Allergy?

Within the last few weeks I’ve noticed that every time I have even a sip of red wine, orange wine, or beer that my right ear gets red and hot. It’s just the right ear, and the effects are almost immediate (within 5 minutes.) This is the only symptom. Anyone else deal with something similar? I don’t know how dangerous it is because my body does seem to be saying something. I’ve never been someone who flushes when I drink.