I get really bad hayfever too, I was terrible a few weeks ago but it seems to have calmed down a bit now. I don't like antihistamine tablets, like you they make me drowsy which is no good! I tend to use a combination of a nasal spray and eyedrops, depending which bit is affected - although I tend to find that if my nose is bad and my eyes are just a bit itchy that the nasal spray sorts both out.
Hope that helps!
Ju