Testing with the Patient’s Own Products
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Commercially available patch test kits (baseline series and various supplementary series) are the basis for the diagnostic work-up if an allergic contact dermatitis is to be confirmed. However, testing with the products actually used by the patient and if possible also with the ingredients is crucial in order to detect all possible and relevant sensitization sources and/or detect new allergens. This chapter gives advice on how to test patients’ own products.
KeywordsOwn products Patch testing Semi-open test Use test