The procedure is typically performed by an allergist or dermatologist. During the test, the skin is cleaned and dried, and a series of patches containing different allergens are applied to the skin. The patches are then secured in place with adhesive tape and left in place for 48 hours. During this time, patients are advised to avoid getting the patches wet or engaging in activities that may cause excessive sweating or rubbing of the skin.
After 48 hours, the patches are removed, and the skin is examined for any signs of irritation or allergic reaction. The results of the test can be read immediately or after a few days, depending on the type of allergen being tested.
Patch allergy testing is a relatively painless procedure, although some patients may experience mild discomfort or itching during the test. In extremely rare cases, severe reactions may occur, such as anaphylaxis.
If an allergen is identified through patch allergy testing, the patient can take steps to avoid exposure to the allergen and reduce the risk of allergic reactions. Treatment may include the use of topical or oral medications, such as antihistamines or corticosteroids, to relieve symptoms of the allergic reaction.
In conclusion, patch allergy testing is a valuable diagnostic tool for identifying allergens that may be causing skin reactions. It is a safe and effective procedure that can be performed by an allergist or dermatologist. If you are experiencing symptoms of an allergic reaction, such as a rash or itching, contact Lane Dermatology about the possibility of undergoing patch allergy testing to identify the underlying cause of your symptoms.