If you have an allergy, your immune system overreacts by producing antibodies called Immunoglobulin E (IgE) to a substance you inhaled, touched or ate.
So how can you be sure which allergens are responsible for your symptoms? Allergy tests, combined with a physical examination and medical history, can give precise information about what you are, as well as what you are not, allergic to.
Skin testing consists of introducing small amount of the suspected substance, allergen, into the skin and recording the response 20 minutes after application. A positive reaction consists of a wheal (swelling) and flare (surrounding area of redness).
Many people with untreated allergy symptoms aren’t aware of how much better they will feel once their symptoms are properly diagnosed and managed.