Below is a link to a New York Times article:
For many years, there had been no available treatment for food allergies. The management for food allergies consists of proper evaluation by an Allergist to determine the food trigger and avoidance. Portable epinephrine (Epipen) was used for any reaction due to accidental ingestion of allergic foods.
Immunotherapy for food allergy is now under investigation as a possible treatment for food allergy. It is important to understand that this form of treatment is for IgE-mediated food allergy. At this time, we are not sure if food allergy can be cured by this method. However, successful immunotherapy could at least reduce the chance for a fatal allergic reaction and in some cases allow the previously allergic food to be eaten. It is important to understand that this is still a new method for food allergy management and there are still a lot of unknowns.
Currently there are two methods of immunotherapy for food allergy, one is oral immunotherapy and the other is sublingual. There are subtle differences between the two methods and each has its advantages and disadvantages.
The Allergist can properly evaluate your food allergy and discuss management options for your food allergy.