I have a question, and please don't act on it without looking into it because I may be wrong. I am rarely wrong, but it has happened once or twice.
I theorize that part of our exploding allergies problem is simply because our immune systems are designed to work under a parasite load and for many, the immune system gets overreactive in the absence of that load. I don't claim this is the entire story, but I think maybe it is a large part.
Through all of human history except the last couple of generations, most people carried intestinal parasites (mostly worms of various types) from early childhood on. The first thing any parasite has to do is calm down your immune system so your body doesn't attack it. I've read several articles about small studies (no one will fund a large study because you can't patent a parasite), where the researchers have given people with multiple schlerosis intestinal parasites (tape worms in many, although at least one other was mentioned, but I don't remember it's name). In all cases I've seen, the patients MS completely stopped progressing over the course of years (damage already done was not repaired). In at least one study I read, at the end the patients were given the option of keeping the parasites or taking meds to kill them. 100% of the patients opted to keep the worms.
Much of the apparent increase in allergies may be due to increased recognition. (I had a dr. who grew up on a farm tell me that at certain seasons they were all sneezing, hacking, red eyed and plugged up sinuses, but his folks didn't know to call it hayfever. I don't think that recognition is all of it though.
I wonder if maybe part of our 'permaculture' should include our own gut biota (that's actually a pretty fashionable idea now), including worms (which is a decidedly unfashionable idea).
I am an allergy sufferer, too, and have had great success using local bee pollen. I mix it into a little applesauce each morning. If you're just starting out, ease into it in very small increments. Start with a couple granules each day, then add a few granules more after about a week. Gradually (like over the next couple of months) build up to a teaspoon of be pollen daily. I hope this helps.
from what I understand allergy is the action or more precisely mis action of immune system. If this is correct then it would be logical to start from the immune system. Perhaps this is the reason why honey works. Honey is a natural immune booster. So perhaps take other immune system fixer/booster such as ganoderma mushroom.