Diagnosis Contact dermatitis

patch test

since contact dermatitis relies on irritant or allergen initiate reaction, important patient identify responsible agent , avoid it. can accomplished having patch tests, 1 of various methods commonly known allergy testing. top 3 allergens found in patch tests 2005–06 were: nickel sulfate (19.0%), myroxylon pereirae (balsam of peru, 11.9%), , fragrance mix (11.5%).

the patient must know irritant or allergen found able avoid it. important note chemicals have several different names, , not appear on labels.

the distinction between various types of contact dermatitis based on number of factors. morphology of tissues, histology, , immunologic findings used in diagnosis of form of condition. however, suggested previously, there confusion in distinction of different forms of contact dermatitis. using histology on own insufficient, these findings have been acknowledged not distinguish, , positive patch testing not rule out existence of irritant form of dermatitis immunological one.