From the American Academy of Allergy, Asthma & Immunology:

Oral immunotherapy (OIT) refers to feeding an allergic individual an increasing amount of an allergen with the goal of increasing the threshold that triggers a reaction. For example, a person allergic to peanuts may be given very small amounts of peanut protein that would not trigger a reaction.

OIT is a leading investigational and now, marketed treatment, offering the hope of protection from food allergy reactions. However, like most chronic diseases, food allergy treatment will not be a “one size fits all” approach. Ultimately, the choice of treatment will be based on individual and family factors after careful discussion with one’s physician. 

Learn more from the American Academy of Allergy, Asthma and Immunology