Medical Encyclopedia

Intradermal allergy test reactions

Intradermal allergy testing is another method of skin testing to help determine whether an individual is allergic to a specific allergen.The test involves injection of a small amount of the suspected allergen under the surface of the skin.After about 20 minutes the area is examined for a reaction at the site.A typical reaction looks like a small hive with swellling and redness.The intradermal test is more sensitive than the skin prick test and can usually provide more consistent results.