I have had severe hayfever for around 6 years now, I tried everything, pills, sprays, sniffing camomile, these products have managed to keep the worst of the worst under control, but I couldn't do an entire day without using up half a roll of tissues.
Then I found the Sneezer Beam, though I first ran into it a while back, with a much higher price of around 80 quid. The first time you use it, your nose will be runny, used it twice a day for around a month now and even though it's the middle of May, I feel like pollens are no longer affecting me! I don't have to use it any more, basically, it cured me.
I highly recommend it to anyone still suffering. It worked for me and may work for you too.
Oh one last thing, it might have been my bad luck, but my device sometime doesn't switch on and I have to reinstall the battery before it will work again... no idea why.