Supposedly when somebody consumes honey (specifically raw, local, unpasteurized, unheated honey) the honey contains trace elements of the original pollen and this acts sort of like an immunity shot for allergy sufferers.  The official term for all this is Immunotherapy.

• Article on local honey and allergies
  

Please note that many of the cures on this website are in a state of incomplete progress. To simplify, I have created a 'best natural cures' page which I believe contain the most effective, non-drug, non-surgical cures available.