1. A dressing for the skin containing the first and second electrodes, an electrical power source that is not electrically connected to either one or both of the first and second electrodes, and further containing a physiologically or antimicrobial active precursor substance, wherein the dressing is made to activate when placed on the area of the skin that must be cured by connecting to the power source of both the first and second electrodes, thereby triggering electrochemical oxidation or reduction of the substance - a precursor on one of the electrodes for the production of a physiologically or antimicrobial active oxidized or reduced compound that is able to diffuse in the direction of the skin region for its treatment. 2. A skin dressing according to claim 1, characterized in that the electrodes are lamellar and mainly plenary, preferably less than 1.0 mm thick, and more preferably less than 0.5 mm thick. The skin dressing according to claim 1 or 2, characterized in that the electrodes are coplanar. 4. The skin dressing according to claim 1, characterized in that the ratio of the surface area of the first electrode to the second electrode is at least 2: 1, more preferably at least 4: 1, most preferably at least 8: 1.5. The skin dressing according to claim 3, characterized in that one electrode mainly surrounds the other electrode. The skin dressing according to claim 1, characterized in that at least one electrode includes several strips or elements that are located, spreading from each other. The skin dressing according to claim 1, characterized in that the electrodes are non-metallic. The skin dressing according to claim 7, characterized in that the electrode1. Повязка на кожу, содержащая первый и второй электроды, источник электропитания, не соединенный электрически либо с одним, либо с обоими первым и вторым электродами, и дополнительно содержащая физиологически или противомикробно активное вещество-предшественник, при этом повязка выполнена с возможностью
