A method for combining the effective modalities of electrotherapy and phototherapy is provided. A medical electrode assembly is substantially transparent or translucent to visible, infrared and/or ultraviolet light so that light rays emitted by a phototherapy device can shine through and pass transversely across every layer of the medical electrode assembly to impinge upon the skin of the patient to which the assembly is attached. This includes an area of skin located directly underneath the medical electrode assembly and thereby enables the combination therapy to be achieved.