Allergy tests are now more convenient and accurate than ever. When combined with a detailed medical history, allergy testing can identify the specific things that trigger your allergic reactions.

Today, prick or puncture tests are commonly used by allergists as diagnostic tools.


Here is how both types of tests are administered:

Prick/puncture A diluted allergen is applied with a prick or a puncture on the surface of the skin.
Intradermal Using a 26- to 30-gauge (very thin) needle, a diluted allergen is injected immediately below the skin surface.



Skin or sometimes blood (RAST) tests  are performed to confirm the specific allergens to which the person has antibodies.Immunotherapy is usually recommended only if the person seems to be selectively sensitive to several allergens.