Patch Test

"Patch test" or "patch testing" is a diagnostic tool used in dermatology to identify potential allergic contact dermatitis. This test is conducted to determine whether an individual is overly sensitive or allergic to specific substances that come into contact with their skin.

During a patch test, small amounts of different allergens are applied to the skin using patches, typically on the back. The patches remain in place for approximately 48 hours, during which the skin's reactions to the allergens are observed. After the specified duration, the patches are removed, and the skin's reactions are evaluated. Test results may reveal symptoms such as redness, swelling, blisters, or rash on the skin.

Patch testing is employed to diagnose allergic contact dermatitis and identify which substances may trigger allergic reactions. This test can assist in detecting various allergens, including perfumes, cosmetic products, metal alloys, latex, medications, and other potential allergenic substances. Based on the test results, the specific substances causing the allergic reaction can be determined, allowing for personalized treatment and preventive measures.

A dermatologist should administer the patch test. Consulting with a specialist doctor is important for accurate interpretation of test results and the development of an appropriate treatment plan.