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Cellular phone addiction and allergic contact dermatitis to nickel

A 25-year-old female patient presented with excoriated erythematous facial papular lesions. The lesions had appeared a month earlier, within days after purchasing a new cellular phone. The skin lesions were bilateral, but more pronounced on the right cheek (Fig. 1). Skin lesions were also observed on the right ear and in the preauricular region. The patient was right handed and she had a history of jewellery intolerance manifesting as contact dermatitis. Patch tests were performed using the European standard series. Patch tests were positive only for 5% nickel sulfate at D2 and D3 (þþ/þþ) (Fig. 2). The nickel spot test with dimethylglyoxime performed on the cellular phone was positive (Fig. 3).