I know someone who is getting cataracts from long term use of nasal steroids... I only use flonase at the absolute peak of my allergies. I don't think that thrills the allergist, but it makes my ophthalmologist happier.

I've never had a sinus infection, and I think I found out, most of what I thought were colds probably allergies. I have no food allergies, unless you count a sensitivity to sulfates - though that's more of an additive than a "food"... and it's not super severe - I get a stuffy nose if I drink red wine that has a lot of sulfates.