Jose R. Reyes Memorial Medical Center | Department of Dermatology

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Patch Testing


What is Patch Testing? 

Patch testing is a procedure that helps you and your doctor identify contact allergens to your skin. Special patch testing chambers, containing various potential allergens, will be applied to an area of the skin (usually the back), and these chambers will be taped and left on for 48 hours. You will be advised to avoid wetting the areas until the assessments are complete. The areas will be assessed twice within the week, with the second assessment after 24-48 hours. Should any results come out positive, your doctor will advise you on allergens to avoid. 

Our patch testing schedules are on Mondays and Tuesdays!

Ask your doctor for more information.


Contact Dermatitis Core Team