When a person finally realizes that they are reacting to a food and might have a food allergy, testing is the next vital step. If the reactions were severe, the chances are that the hospital involved will either order the tests or send information to the patient’s doctor stressing the need for food allergy testing. In fact, there are three common ways to test for food allergies, though two other ones give a clearer picture to an allergy specialist. These include a medical history assessment, scratch tests, bent tests, diet elimination tests and oral type challenge tests.