I have an allergy to seoithmng, but no dr.has been able to figure out to what. All allergy tests come back neg.I have had nasal polyps & had them removed, they started to come back. I am on Singulair/Flonase which works fantastic. I know I am allergic to alcohol, yes beverages. Drs just tell me not to drink. Yeh OK.Ok, but this is the strange thing. When I go away on vacation (islands,Italy) no allergies, not even to alcohol.I regain my sense of smell,taste?????