Allergic contact dermatitis from para‐phenylenediamine in Bigen^® powder hair dye

Abstract

A 35-year-old man had a medical history of atopic disease, with rhinitis, asthma and flexural dermatitis since childhood. He had worked as a carpenter since he was 18 years old. After 1 year in this work, he reported more severe relapsing episodes of asthma, rhinitis, conjunctivitis and widespread dermatitis but not urticarial lesions. He improved only on weekends and holidays. Every time he returned to work, he experienced a worsening of symptoms and these were so severe that he occasionally required systemic corticosteroids.