What is Patch Testing?
At Nova Dermatology, we offer patch testing for allergies in cases of contact dermatitis. Allergy patch testing is a diagnostic procedure used to identify allergens that may be causing skin irritation or inflammation. The test involves applying small amounts of potential allergens to patches, which are then applied to the skin for a period of 48 hours. The patches are removed and the skin is evaluated for any signs of irritation or inflammation.
What Does Patch Testing Test for?
The most common allergens tested for include nickel, cobalt, fragrances, preservatives, and rubber chemicals. Patch testing can also be used to identify specific allergens in cases of contact dermatitis, a condition characterized by redness, itching, and inflammation of the skin.
How Does Patch Testing Work?
The procedure is typically performed by a dermatologist or an allergist. Before the test, the skin is cleaned and any makeup or lotions are removed. The patches are applied to the skin on the back or upper arm and are usually left in place for 48 hours. The patient is instructed not to shower or swim during this time.
After the patches are removed, the skin is evaluated for any signs of irritation or inflammation. The results of the test may be available within a few days or up to a week. If an allergen is identified, the patient may be advised to avoid contact with that substance in order to prevent further skin irritation or inflammation.
Allergy patch testing is considered a safe procedure with minimal risk of complications. However, some patients may experience mild skin irritation or redness at the site of the patch.
It’s important to note that patch testing is not suitable for everyone, including those with active skin infections, eczema, or certain other skin conditions. For more information or to schedule your own patch testing appointment, be sure to contact Nova Dermatology today.