Medical Dermatology

Allergy Patch Testing

Comprehensive patch testing to pinpoint the substances triggering your contact allergies and rashes so you can avoid them with confidence.

When a rash keeps coming back and you cannot figure out why, an allergic contact dermatitis may be the cause. Patch testing is the gold-standard method for identifying the specific substances your skin is reacting to, from fragrances and preservatives to metals, adhesives, and ingredients in everyday products.

During patch testing, small amounts of common allergens are applied to your back and left in place over several days. Our dermatologists then read the results at scheduled visits to see which substances produce a reaction, creating a precise map of your sensitivities.

Once we know your triggers, we provide a personalized avoidance plan, including the product ingredients to watch for and safer alternatives to use instead. For many patients, identifying the culprit is the turning point that finally brings a chronic rash under control.