Anyone know why it works?
> Among allergy sufferers, there is a widespread belief that locally produced honey can alleviate symptoms. . .when University of Connecticut Health Center researchers did a test, they found that the honey had no such effect.
Additionally, a general fault of immunotherapy for allergy is that we tend to present the allergen in a manner distinct from its biological presentation - e.g., oral presentation of inhaled allergens. Since we have different mucosa-associated lymphoid tissues throughout the body, and since they do react differently, generally you're not going to get a great response to oral administration of a non-oral allergen (e.g., something you'd normally inhale, like pollen).
You did not describe anything that resembles immunotherapy. Immunotherapy takes a very long time (months to over a year) before you start to notice an improvement in symptoms and requires year round treatment, not just during allergy season. After 3-5 years treatment is discontinued.
You can also see an allergist for actual immunotherapy but you have to commit to getting regular shots (decreasing in frequency) for a few years which can be pretty inconvenient especially because you must stay at the office for a half hour afterwards to make sure there was no life threatening reaction... but it is the only thing that could actually cure you of allergies after the immunotherapy is stopped.