As one who makes his living by writing about allergies and asthma I am often asked about the potential health benefits of using local honey. Here I am talking about alleviating allergy symptoms, not "curing" allergies, which is far easier said than done.
Honey contains bits and pieces of pollen and honey, and as an immune system booster, it is quite powerful. I have often in talks and articles, and in my books, advocated using local honey. Frequently I'll get emails from readers who want to know exactly what I mean by local honey, and how "local" should it be. This is what I usually advise:
Allergies arise from continuous over-exposure to the same allergens. If, for example, you live in an area where there is a great deal of red clover growing, and if in addition you often feed red clover hay to your own horses or cattle, then it likely you are exposed over and over to pollen from this same red clover. Now, red clover pollen is not especially allergenic but still, with time, a serious allergy to it can easily arise.
Another example: if you lived in a southern area where bottlebrush trees were frequently used in the landscapes or perhaps you had a bottlebrush tree growing in your own yard, your odds of over-exposure to this tree's tiny, triangular, and potently very allergenic pollen is greatly enhanced.
In the two examples used above, both species of plants are what we call amphipilous, meaning they are pollinated by both insects and by the wind. Honeybees will collect pollen from each of these species and it will be present in small amounts in honey that was gathered by bees that were working areas where these species are growing. When people living in these same areas eat honey that was produced in that environment, the honey will often act as an immune booster. The good effects of this local honey are best when the honey is taken a little bit (a couple of teaspoons-full) a day for several months prior to the pollen season.
When I'm asked how local should the honey be for allergy prevention I always advise to get honey that was raised closest to where you live, the closer the better since it will have more of exactly what you'll need.
It may seem odd that straight exposure to pollen often triggers allergies but that exposure to pollen in the honey usually has the opposite effect. But this is typically what we see. In honey the allergens are delivered in small, manageable doses and the effect over time is very much like that from undergoing a whole series of allergy immunology injections. The major difference though is that the honey is a lot easier to take and it is certainly a lot less expensive. I am always surprised that this powerful health benefit of local honey is not more widely understood, as it is simple, easy, and often surprisingly effective.
Pharmaceutical companies have huge budgets and can fund studies, but with honey this scientific research doesn't seem to get funded... thus most evidence we have is what we see, anecdotal evidence. That however can be, and often is important; sometimes, often actually, such evidence proves very useful. Let me give you one such anecdotal example of the powers of local honey. I was asked to look over the yard of a family that had just moved to this area (Central coastal California) to see if I could figure out what was triggering the allergies of their five-year-old son. The boy was experiencing classical allergic responses, runny nose, itchy eyes, persistent cough. This family had only recently moved to California, from the Midwest, so a pollen allergy was surprising, as they generally take a number of years of exposure to develop.
The boy had started having these symptoms a few months after moving here. At his house I didn't find the usual allergy culprits of the landscape, male cloned trees or shrubs, but I did note that next to the house was a row of towering blue gum eucalyptus trees. I knew the eucalyptus trees were shedding plenty of pollen, as you could see it on the windows of the cars parked underneath them. I checked some of this pollen with a microscope and it was indeed from these blue gum trees. Eucalyptus pollen is fairly large in size and is triangular in shape, making it easy to ID. I suggested that at the local farmers market they could buy some eucalyptus honey and recommended that the boy be given several spoonfuls of this every day.
The family did as I advised and the boy ate the strongly flavored eucalyptus honey every day for four months. By the end of the first month the allergic symptoms were starting to ease up. By the end of the second month all his symptoms had disappeared. Some ten years then passed and while in high school this same boy again started having allergic symptoms. I visited the high school at the request of his folks and found that they had a multitude of huge eucalyptus trees growing there. I again advised the local honey and once again, it seemed to do the trick.
Now, let me be clear here, I am not suggesting that local honey will replace allergists. But what I am saying is that since visits to allergists are expensive and the series of immunology shots, although generally very effective, are costly, it makes perfect sense to give the local honey a try first. Many times, as many others and I have seen firsthand, the local honey will take care of the problem, quickly, safely, and inexpensively.