"Take a tablespoon of honey each day for 14 days, starting in early March. It's best if it's honey from a bee farm in your area."
Somwhere I heard that, and desperate to quit sneezing and squirting $25 bottles of prescription corticosteroids up my nose for 8 months of the year -- to ease my miserable, adult-onset hayfever -- I tried it!
I will testify on a Bible that molds and dust and smoke still bothered me -- but it seems the trees and grasses didn't get to me, or they got to me less; and out here, that is more than half the battle.
My dad was a peasant farmer from Europe and he insisted, "Eat a spoonful of honey a day and you will never get sick." We laughed at him and said "Yuck." Don't think you can smoke and eat fatty meats 3x/day and that honey will protect you. He thought it might, but it didn't. But he got his information from somewhere in his culture, and I heard it repeated by some New Ager years later and said to myself, "It can't HURT to try."