02/10/2026
Patch testing is a great procedure offered at Wolff Allergy and Asthma in Detroit that can help identify the causes of a rash. “Patch testing” is done by taping “allergens” under “patches” to your back and leaving them on for 48 hours. Most substances causing contact dermatitis (a type of rash) are found in products we use every day.
Check out wolffallergy’s video.