To diagnose a
food allergy, your doctor will start with a
medical history and a physical exam. Your doctor may
What symptoms you have.
If your family has any food allergies.
How soon the symptoms began after eating food.
If over-the-counter medicines helped.
If other people also got sick.
How the food was prepared.
If you ate any other foods.
It's important to find out whether you have a
food allergy or food intolerance. Your doctor may ask you to keep a record of
all the foods you eat and any reactions you have to them. Your doctor will also consider if your reaction could have been caused by things like allergies to medicines or insect stings, food poisoning, irritants in foods, or exposure to skin irritants.
It is possible that the main title of the report Anaphylaxis is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.
Your doctor may ask you
to try an elimination diet, an oral food allergy challenge, or both.
In an elimination diet, you avoid eating foods that may be causing an allergic reaction and see if your symptoms go away. If symptoms come back when you eat the food again, your doctor can confirm your food allergy. The elimination diet can last from 2 to 8 weeks.
In an oral food allergy challenge, you eat a variety of foods that may or may not cause an allergic reaction. Your doctor
watches to see if and when a reaction occurs. This test
is considered the best way to diagnose a food allergy.
After you have been diagnosed with a food allergy, you may also have
allergy tests, such as skin tests or blood tests, to find out which foods you are allergic to.
In this article
This information is produced and provided by the National
Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National
Institute via the Internet web site at http://
.gov or call 1-800-4-CANCER.
WebMD Medical Reference from Healthwise
March 12, 2014
This information is not intended to replace the advice of a doctor.
Healthwise disclaims any liability for the decisions you make based on this