Contact dermatitis and patch testing for the allergist

Contact dermatitis (CD) is a common disease seen by allergists. Although underutilized, patch testing (PT) remains the gold standard in the diagnosis of allergic CD. It is not difficult to perform, however, the interpretation of the PT, proper classification of the results and determination of their relevance, need an appropriate level of expertise. The objective of this article is to provide a review of CD and its key allergens and provide updates and recommendations for the practicing allergist.

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