I recently heard that a treatment for hayfever is to eat honey made locally, that is, in your area of town. It builds your resistance to local pollens that cause your hayfever reaction.
I used to suffer terribly from hayfever but sometime in the early nineties it pretty well disappeared. If I still suffered badly, I would give this honey eating idea a shot. It sounds quite plausible.
A couple of hours after hearing this, some electrical impulse shot from one side of brain to the other and I remembered that in the early nineties, I bought honey from a work mate. He lived only a couple of kilometres from my workplace and kept bees and made his own honey. Over a year or so, I guess we bought five jars. I got sick of it crystallizing and having to heat it in the microwave to clear it, so we stopped buying it.
The time roughly co-incided with the almost ceasing of my hayfever. While it is hardly proof of the theory, it would be well worth a try if you are a sufferer. Believe me, I know how bad it can be.