Valdivieso, RommelHeras-Mendaza, FelipeConde-Salazar, Luis2020-02-062020-02-062013-11-28http://dx.doi.org/10.1111/j.1525-1470.2012.01857.xhttps://lib.digitalsquare.io/xmlui/handle/123456789/5362A 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