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Facial Contact Dermatitis and the Irritant Potential of Mobile Phone Screens


Address correspondence to Rommel Valdivieso, M.D., Allergy and Dermatology Center, Meditropoli Medical Center, Av. Mariana de Jesús Oe8, Quito, Ecuador, or e-mail:


Abstract:  A teenager with atopic dermatitis presented with a 12-month history of recurrent, pruritic, round and polygonal patches on her face. Patch tests using the European standard series (including nickel, chromium, and cobalt chloride), a plastic and glue series of allergens, polyester components, and personal and environmental products in contact with the patient were conducted. For the patient and 3 of 14 healthy volunteers, positive reactions were observed to the patient’s mobile phone touchscreen (TS), an extract solution from the TS, and a non-TS phone of another brand. Accordingly, the patient’s dermatitis disappeared when contact with mobile phone screens was avoided.