I'm a heavy sufferer of Hay Fever...
The sectret is to find out what sets you off, most people think flower pollen is the main culprit, but TREE POLLEN is also a bastard.Once you have become sensitised to it your on a down hill battle with nearly every other dusty substance, including pollution, fumes,brake dust, house dust etc etc.
Piriton works for me but it takes about 3 or 4 weeks of taking the tablets before a real effect is seen.
Sudafed is good for unblocking a really stuffed up nose, and clears the sinus out too.
As Jeff says, the nose and eye thing is the RESULT of hayfever, it really isn't just pollen going up your nose that makes it run, so dont get pollen on your skin. Locking yourself in an air tight rooom does work, or at least a steamy bathroom will give you relief for a while!...
I also sleep with a damp cloth over my face when it's really bad.
Rather disgustingly.... try not to swallow to much SNOT!... you'll get a stomach ache and a nasty cough to go with it.
ITS A CURSE!!!!!