Suffering from asthma or allergies in arizona? Prick skin testing, also known as scratch testing, is one type of allergy testing. A small disposable prick device applies the allergy extract to the skin and then scratches or pricks the skin. Common allergy extracts are grasses, weeds, trees, house dust, animals, and molds. A hive or raised bump will occur at the site of the prick. Each test site will be measured and specific allergies of the patient identified. Prick testing may be applied to the forearms or the back depending upon the age of the patient, the number of tests ordered, and the condition of the skin
