Skin Patch Test
A healthcare provider will place small patches on a person’s skin for diagnosing skin rashes. The skin patches look like adhesive bands and they contain small amounts of particular allergens. The patient wears the skin patches for almost 48 to 96 hours and then come back to the doctor’s office. The doctor will remove the patches from the skin and check for skin rashes or other reactions. However, there is no specific test for the diagnosis of irritant contact dermatitis. But the healthcare provider might make a diagnosis on the basis of a physical examination, the symptoms, and the information you provide about your exposure to some substances. If there is appearance of red and itchy bumps at any of the testing areas, it means that you are allergic to those certain substances.