Thank you all for your comments and advice on my allergy woes.
Since it's what I had in the house at the time, I've been taking a combo of Claritin and Benadryl, and it helps a lot. My eyes are still bothering me, so I'm going to follow Holly's and Mike W.'s advice of using Visine-A, as soon as I can get to the store later today to buy some.
I think I'll get a sinus rinse at the same time, too. Might as well give it a shot, a lot of folks I know and respect highly recommend it.
I just hope that this misery passes quickly. I HATE having to take pills constantly. At least the Benadryl is helping me sleep better at night...