Contact Dermatitis and Patch Testing

Allergic contact dermatitis refers to an itchy rash due to exposure to certain chemicals. Patch testing is done to identify specific allergens that are triggering your symptoms. Recognizing and avoiding allergens can significantly improve the management of contact dermatitis and prevent future flare-ups.

What is patch testing? Patch testing is a non-invasive form of allergy testing that evaluates for allergies to things like fragrances, dyes, preservatives, rubber, metals, and topical medications. Unlike testing for environmental allergies and food allergies, patch testing requires multiple visits for placement and interpretation.

During patch testing, multiple patches containing potential allergens (usually 87) are placed on the skin, marked, and left on for 48 hours. Patch testing typically requires 3 office visits:

1. Monday: Patch placement in Norwalk office

2. Wednesday: Patch removal in Norwalk office

3. Friday: Patch reading and counseling in Greenwich office

4. Monday: Possible additional reading in Norwalk office

If you are interested in learning more about patch testing, schedule a visit with any one of our providers.