The Contact Allergy Testing Clinic helps identify the cause of skin rashes.
A common cause of skin rashes is allergy to materials in the home and workplace. This condition is "contact dermatitis," and the rash may burn or itch. The allergens or products, ingredients, chemicals, or materials that people may be allergic to include:
- Topical antibiotics
- Topical creams and ointments
To identify the cause of the rash, our specialists can run contact allergy testing (patch testing). Unlike the more common "prick testing" and radioallergosorbent (RAST) tests, patch testing uses no needles and does not require blood tests. The test involves taping allergens to your back. These "patches" remain on for two days before removal. We then read the patches, return them to your back, and then read them again after two more days. If we find the cause of the rash, removal of a responsible allergen from a person’s environment can occur. If cause of the rash is not due to an identified allergen, patients will know their discomfort is not the result of most common allergens.