Thanks for your replies BUT....
You're welcome.

Am i right in asking that you can't fly because of the drugs you take to stop hayfever,
or is it just hayfever on its own??
I actually dont take any medication for my hayfever (Its not really that bad), i only have organic remedes to help.
Generally (well, in all cases I've known of) you will only be allowed to fly on medication prescribed by a military doctor when ill (if allowed to fly at all). In your case, if you're not having to take any medication that may be to your advantage...
