Abstract: The present invention discloses a therapeutic system for the topic, transdermal and transcutaneous application of carbon monoxide (CO), comprising: (i) an adhesive layer, (ii) a gas-permeable and liquid- and solid-impermeable membrane, (iii) a reaction chamber comprising a CO releasing molecule A, and (iv) a gas-impermeable backing layer, wherein the transdermal therapeutic system is configured that the CO releasing molecule A can be brought into contact with a CO release triggering compound B in the reaction chamber (iii). The therapeutic system can be used for the treatment of wounds, inflammatory diseases of the skin, and inflammatory diseases of subcutaneous skin tissue, joints and tendons.