A dressing for treating a damaged tissue, incorporates a pair of electrodes and a conductive gel between the electrodes. An electric current passes between the electrodes through the gel to repair the damaged tissue. Sensors can be incorporated into the dressing along with a control unit. The control unit can vary the current supplied to the electrodes according to environmental parameters detected by the sensors. Alternatively, one or more pre-defined programs can be stored in the control unit for supplying an alternating current to the electrodes with a varying amplitude, frequency and waveform.
