antihistamines

I'm not entirely sure what histamines are, but clearly they must be opposed. I was awakened at two this morning by the sound of someone sneezing their fool head off. Worse yet, it was ME sneezing my fool head off! Rapid onset allergic reaction. Itchy eyes, runny nose, incessant sneezing-- the works. How it is possible that a sufficient amount of pollen (or mystery allergen) ade its way into the slimly ajar windows of my seventh floor apartment is quite beyond me. Even more startling is the that I succumbed to such a reaction having no real history of allergies. Fortunately (or not) I'd had another such reaction on a visit to Ontario some months ago and still had some antihistamines on hand. They totally saved me, last night and today. God bless the makers of antihistamines!