An apparatus (1) for the therapeutic treatment of a user's tissue injury comprising a control unit (2), to which an applicator (3) is connected adapted to be positioned in proximity of the tissue injury to be treated is described, said control unit (2) being configured to generate at the applicator (3) an electric field adapted to be applied on the tissue injury. The control unit (2) is also configured to generate an air or oxygen flow which is directed to the applicator (3), and to transform at the applicator (3) the air or oxygen flow into an ozone flow adapted to be diffused and applied on the tissue injury in combination with said electric field.