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Textile dye allergic contact dermatitis following paraphenylenediamine sensitization from a temporary tattoo

SUMMARY Textile dye allergy is frequently caused by azo dyes, which can cross‐react with structurally similar compounds, including paraphenylenediamine. A case of allergic contact dermatitis to azo textile dyes, presenting principally as a sock dermatitis, is presented. The patient also gave a history of an episode of scalp dermatitis consistent with contact allergy to paraphenylenediamine in hair dye. It is proposed that paraphenylenediamine sensitization from a temporary skin tattoo may have been the primary sensitizing event for these reactions.