This has some molecular and genetic explanation which has something to do with alcohol metabolism in
the absence of other symptoms though (eg weight loss,changes in
bowel movement,neurological deficits) ,this may not be very urgent.
One important thing to exclude here though is an allergic reaction.Watch out for any diffiulty of breathing, rash that involves the entire body and generalized sensation of flushing.
Continue to have a close follow up with your doctor.