1. What is allergy patch testing? Patch testing is a process to detect causes of allergic contact dermatitis. It involves applying patches with test substances in small chambers to a person's back. The patches are secured with hypoallergenic tape. No needle pricking is involved.
2. What is tested? The substances applied are tailored to the individual. A standard baseline series of allergens is applied, together with other specific allergens relevant to the individual. Substances that are tested include metals, fragrances, preservatives, resins, rubber products, dyes, and many other commonly used substances. Special orthopedic and dental material panels are also available for testing.
3. What is involved in getting a patch test? During the initial consultation with a doctor, information is obtained to identify possible allergens. The patient is then scheduled for patch testing:
Appointment 1: Patches are applied and kept undisturbed for 48 hours.
Appointment 2: Patches are removed and reactions are read.
Appointment 3: Second reading is done and results and management are discussed with the doctor.
4. Before/After Care. Avoid direct sunlight exposure to the back several days prior to and for the duration of testing. Keep the area of skin being tested dry until the final reading. Avoid activities that make you hot and sweaty. Avoid excessive twisting movements which can lift the test patches. Do not apply any oil or cream on your back the morning of the testing.
5. Medications Before scheduling an allergy patch test, please bring to your doctor a list of all your prescriptions and over-the-counter medications. Anything that suppresses allergic reactions has to be avoided usually for a week before the test.
Call our office to schedule your patch testing and to find out why you are itching and having skin rashes!
Anne Szpindor, M.D., Board Certified Allergist
8 Executive Court
Suite #1
South Barrington IL 60010
(847) 310-8844
Fax: (847) 310-9224