How Do Doctors Test For Food Allergies?

Q&A - for Parents

How do doctors test for food allergies?

The most important aspect of assessing food allergies is the history of what happens after a certain food is eaten.

Skin Prick Test

Doctors will then perform a skin prick test, typically on the forearm or back, using concentrated extracts of the food in question.

We then wait approximately 10 minutes to see if a wheal or hive forms.

A presence of a hive suggests evidence of food allergy.

Read Tips On How To Navigate a New Allergy Diagnosis

The doctor interprets the result of skin testing in the context of the history and then provides guidance on what steps should be taken with specific foods.

The general information provided on the Website is for informational purposes and is not medical advice.

Do NOT use this Website for medical emergencies.

If you have a medical emergency, call a physician or qualified healthcare provider, or CALL 911 immediately. Under no circumstances should you attempt self-treatment based on anything you have seen or read on this Website. Always seek the advice of your physician or other licensed and qualified health provider in your jurisdiction concerning any questions you may have regarding any information obtained from this Website and any medical condition you believe may be relevant to you or to someone else. Never disregard professional medical advice or delay in seeking it because of something you have read on this Website.
Dr. Allison Kwan, MD, FRCPC, FRCPC

About Dr. Allison Kwan, MD, FRCPC, FRCPC

Dr. Allison Kwan is a pediatric allergist. She completed her medical degree at the University of Toronto, followed by a pediatric residency at Children’s Hospital of Western Ontario, and a pediatric immunology and allergy fellowship at the Hospital for Sick Children.

View All Posts
2017-07-02T16:17:27+00:00