Allergen patch tests are diagnostic tests applied to the surface of the skin. Patch tests are used by healthcare providers to determine the specific cause of contact dermatitis, and are manufactured from natural substances or chemicals (such as nickel, rubber, and fragrance mixes) that are known to cause contact dermatitis.
Vaccines, Blood & Biologics
Consumer Affairs Branch (CBER)
Division of Communication and Consumer Affairs
Office of Communication, Outreach and Development
Food and Drug Administration
10903 New Hampshire Avenue
Building 71 Room 3103Silver Spring, MD 20993-0002