Allergies can often be debilitating to those affected. If you have an allergy, your body is reacting to something you inhaled, touched or ate. The substances that trigger an allergic reaction are called allergens. A very small amount of certain allergens is put into your skin by making a small indentation or “prick” on the surface of your skin. If you have allergies, just a little swelling will occur where the allergen(s) which you are allergic to was introduced.
Allergy testing typically involves a skin prick test, where small amounts of common allergens are applied to the skin. A positive reaction (a small wheal or bump) indicates sensitivity to that allergen. Blood tests (specific IgE testing) may also be used.
A typical allergy skin test appointment takes about 30 to 60 minutes, including a 15–20 minute observation period after the test.
Yes. Antihistamines and some other medications can interfere with results. Your provider will advise you on which medications to pause and for how long before your appointment.