A positive allergy test alone does not determine a patient’s allergy status.  The size of skin test and/or level of specific IgE, the patient’s age, specific food and history all go into allowing a board-certified allergist to use their training to determine if a patient has a food allergy.  If needed, an oral challenge may be also utilized to help determine if a patient is truly allergic to a food an not unnecessarily avoiding a food. If your doctor does not offer an oral challenge as a possible option to determine your allergy status then they should not be testing you for allergies. Be educated, a fellowship trained board-certified allergist will be able to provide you the best possible allergy care.

https://reachmd.com/programs/what-your-patients-are-talking-about/companion-allergy-tests-limitations-effectiveness/9584/video/17101/