A dressing for treating a wound includes a flexible membrane having an upper surface and a wound-facing surface, a flexible battery, an electrode pattern to deliver current to the wound, and a current control electrically to limit the amount of current delivered to the electrode pattern. In embodiments, the current control includes active circuits, series resistors, and parallel resistors. A method of treating a wound includes applying the described dressing and adjusting the current. Embodiments include applying a conductive gel containing a stem cell culture medium or cannabidiol.
