What is
Allergy Patch Testing
An Allergy Patch Test is a highly specialized diagnostic procedure used to pinpoint the exact root causes of contact dermatitis (allergic skin reactions). When your skin reacts poorly to mysterious everyday triggers, this medical test helps cut through the guesswork to find out exactly what substance is causing the irritation.
Unlike scratch tests that check for food or respiratory allergies, patch testing specifically looks for delayed allergic reactions. It tests for common real-world irritants that come into direct contact with your body—such as heavy metals like nickel, chemical fragrances, cosmetic preservatives, and aggressive hair dyes.
The Procedure and Timeline of
Patch Testing
The procedure is a multi-step process designed to safely reproduce a small, controlled allergic reaction on healthy skin. A standard baseline series of common allergens, along with specific substances tailored to your personal daily environment, are applied onto specialized patches and placed onto your upper back.
The entire diagnostic timeline takes about 3 to 4 quick clinic visits to ensure an accurate reading:
Results and Relief from
Contact Dermatitis
While the testing process requires a few consecutive visits over a 3-to-4-day period, it provides invaluable, lifelong data. By carefully rating and analyzing the skin’s reaction under each specific patch, your dermatologist can give you a definitive map of your immune system’s triggers.
Once the troublesome, pesky allergen is accurately identified, our team will provide you with a comprehensive avoidance plan and tailored skin therapies. Knowing exactly what to avoid allows you to completely eliminate chronic rashes, prevent future painful flare-ups, and enjoy clear, comfortable skin.