I have been told, that a tablespoon of local "raw" honey per day will help with hayfever. I have people request raw honey, but thats what they get anyway. There is pollen in the honey, and since it is your honey, the same thing that makes you sick will help you in smaller doses. But you must eat some on a regular basis.
Pollen is washed out by rain. Normally it is the older pollen that has dryed and become like dust, you know, the stuff that blows around and gets on your car! Newer pollen is more moist. Don't worry, the bees will find the next best thing anyway.