Also are there any possible medicines or methods to completely remove my hayferever?
I dont think so - whoever manages to find one will be a rich man !
All you can do is relieve the symptoms, the 'old fashioned' Piriton based stuff is one to avoid - it's one of those that makes you drowsy - which you certainly dont want to use - whether fast jet flying or driving a pushbike !
Of course should you find yourself strapped into a jet with an oxygen supply strapped onto you - then you will be the envy of the rest of us sufferers
I find that the only place I get refuge is if I go to sea . . .