I don't know of anything that will cure hayfever but there are all sorts of things that will ease the symptoms. Some of those are Yamoa powder (made from a Ghanaian gum tree), garlic & onions, elderflower tea, nettle tea, garlic + ginger + elderflower tincture, lemon balm with echinacea, watercress, fresh papaya, guava. It is also important to remember to adjust your diet and to stop smoking if you are a sufferer. Honey, as you have said, works well to ease the symptoms for many people.