- ALLERGY SKIN TESTS: These tests involve very gentle scratching or pricking of the superfical layer of the skin with purified allergenic extracts and then observation for signs of a local reaction on the skin.
A local reaction might consist of a small hive at the site of the scratch. For certain patients we may need to complete a secondary skin test also known as intradermal testing. This testing involves injecting a small amount of purified allergenic extract under the skin with a very small needle. Positive reactions can determine probability of sensitivity to such items as pollen, animal dander, common mold, house dust, latex, or a variety of common foods. This type of skin testing provokes an immediate-type reaction which is mediated by IgE antibodies and helps in the diagnosis of common ailments such as hay fever and food allergies. This type of skin testing is more sensitive and specific than other forms of testing, as well as less expensive and easier to use.