The U-M Department of Dermatology Patch Testing Clinic at Dominos Farms provides care to patients with suspected contact dermatitis--a red, itchy rash that occurs when the skin comes into contact with a substance that causes the immune system to mistakenly think the skin is under attack. Because treatment of contact dermatitis includes avoiding contact with the substance(s) that trigger the reaction, identifying the cause is key.
Patch testing is a method used to detect contact allergies to specific substances that come in contact with the skin. These substances (or allergens) may be found in personal care products (lotions, soaps, hair dyes, perfumes, cosmetics, etc.), topical medications, shoes, clothing, jewelry, and many other sources. We currently patch test patients to a standard series of 80 allergens called the American Contact Dermatitis Society (ACDS) Core Allergen Series. In addition, we frequently test patients to their own personal care products as well.