OK so I've gone alternative, bought me one of these:
Qu-Chi band
Normally I'm very skeptical, but I read all the reviews I could find and it was an easy majority that said it worked! It can't ALL be the sellers putting up reviews, so I thought I'd give it a go.
Now my hayfever hasn't actually been that bad this year, but I'm sure I've given it enough of testing to know that it actually works! I mean I wake up, and after maybe an hour or 2 of blowing my nose and itchy eyes I put the band on - 20 mins later I've got a bit of a run in my nose but nothing else. So I leave it on for a few hours then take it off - maybe 60 mins later I'm blowing my nose again! Weird. Could be coincidence, could be placebo (who cares, if it works?).
Only problem is it needs a bit of stretching, first few times I put it on I started getting tingling in my fingers after a few hours!