PMC8591644_01
Twenty-nine-year-old firefighter with eczematous eruption on his face secondary to probable photoallergic contact dermatitis (PACD) to thiourea from multiple sources, including his neoprene firefighting mask as shown.
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At times, lesions involved his face (lips, eyebrows, and cheeks), chest, and extensor upper limbs, with sharp cut-off at his shirt line (Figure 1).