as mentioned earlier on other threads I suffer from hayfever but never had it as bad as i was last weekend, my eyes where in a mess & a sneezing fit in a full face helmet isn't pretty, I also said iv'e tried all the remedies going with no success , well just been on ebay and bought one of these
http://www.ebay.co.uk/itm/370786576560?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
I'll let you know how I get on with it in case I'm not the only sufferer on here