The invention relates to a flat flexible coating arrangement comprising a coating surface (9) for placing on a body region of a living being and at least one electrode (3, 3′) arranged above the coating surface (9), and a dielectric (1) containing the at least one electrode (3, 3′), the at least one electrode (3, 3′) comprising a supply line for an AC high voltage in order to form a dielectrically impeded plasma. Said arrangement enables fusion processes over the course of the plasma treatment and optionally wound healing without removing the coating arrangement from the body region by means of at least one built-in sensor (14) for determining at least one parameter of the body region.