Volume 13 - Issue 11 - November 2005

T he thin-layer rapid use epicutaneous (T.R.U.E.) test of 23 common allergens is a valuable, first-line screening tool used by many dermatologists. Although the test focuses on common allergens, frequent questions have arisen from colleagues and patients as to where a specific allergen is derived or what products patients should avoid. With this in mind, this column was developed to provide educational information about the T.R.U.E. test allergens. A rich, interesting history accompanies each of the 23 allergens, and understanding these historic perspectives can help to better educate pat