A 9-year-old boy presented to the emergency room with various macular erythematoses and ecchymotic lesions with geometric shapes and well-defined edges on his left hand and forearm (Figure). Initially, the child denied that the lesions were self-inflicted. But during the anamnesis, his grandmother mentioned that she had noticed that her albuterol inhaler had run out before she had expected. We confirmed that the shape of the distal part of the inhaler corresponded exactly with the borders of the child's skin lesions. Finally, the child confessed that he had created the lesions by heating the inhaler on a vitroceramic hotplate and then applying it to his skin.
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