Patch testing

If you seem to be experiencing an allergic reaction involving the skin, you might be wondering which type of allergy test can best determine the source of your symptoms. The ideal solution is to perform a patch test, where allergen-filled patches are placed onto your back. If you live in or near the Atlanta area and are in need of the patch test, the experts at Northside Allergy and Asthma are here for you.


The purpose of patch testing is to evaluate your reaction to metals (jewelry), cosmetics, hair dyes, fragrances, skin creams, some medications, latex, and several other substances. Your Atlanta allergist Dr. Chacko will apply up to 20 or 30 substances onto your skin, some of which may cause contact dermatitis, i.e., skin irritation. In some cases, we will ask you to bring in your own substances that you have regular exposure to, which we will prepare for testing prior to your first appointment.

Things to Avoid For 48 Hours


Because the patch test requires a 48-hour wait time where you return to your regular schedule, it is important that you avoid bathing and excessive perspiration in order to prevent any interference with the patches on your skin. Keep in mind that the pen we use to label the patches may stain your clothing, so please dress accordingly throughout the entire testing process. You should also prepare for minor discomfort, due to the nature of the test.

If severe irritation or inflammation occurs, contact us immediately!

For more information on patch testing and/or a detailed consultation with your allergist in Atlanta, GA, or surrounding areas, please call or visit us today. At Northside Allergy and Asthma, it is our job to discover and treat your allergies at the source.

Dr. Chacko and Dr. Sanjay Gupta on CNN. See the video here.