Dermap is a device designed for the people with vitiligo. It is an analogical object that allows the autonomous mapping of the vitiligo situation on the hands, in order to keep its progress or regression under control from home. In fact, by inserting the hand inside a preformed mask and lighting the Wood lamps that allow you to view the spots in a clearer way, it will be possible to trace the outlines of the latter by drawing on appropriate sheets of acetate. The collection of the sheets, superimposed on each other in the same position, will allow an immediate visualization of the progress of the disease.