Although I'm not a Pilot, I frequently work out on the airfield especially on the grass areas, I have found local Honey very effective as I suffer with pollen from grass, I start taking a few tea spoons a day just as the grass pollen season begins.
I was very sceptical of this remedy at first, but no longer take any Antihistamine drugs for Hay Fever it has reduced my hay fever to acceptable level.
It is very important to use the Honey that is produced in the local area, from the local plant species (not a lot of comfort to those of you sneezing your way around the world) but may help you on your days off at home, I hope it works for you.
Cheers
Ranger 1
