Hey Friday,
I did my PPL in Florida last August, and although I suffer quite badly with hayfever, I didn't have any problems at all. If you're going in the next week or so, it might be a different case though, as the pollen count is probably still quite high.
On my skills test, my examiner was telling me that the pollen can easily get up to 6000ft, so I would suggest taking a supply of tabs, but remember (stating the obvious but I'll say it anyway) make sure they're non-drowsy! And take sunglasses as well.
Just out of curiosity, which flight school are you going to?
Good luck with the flying
Phill