Abstract: A multi-technology dermal treatment unitary handpiece includes a jet spray delivery handpiece having an elongate housing terminating in one or more nozzles for directing along an axis a therapeutic spray towards the skin of a subject at a desired spray application distance therefrom; and one or more symbiotic treatment handpiece elements terminating in an operative end member having a dermal touch surface for conveying a treatment to the skin, the treatment being symbiotic with therapy provided by the therapeutic spray, wherein the operative end member and the touch surface are laterally spaced apart from the axis, and wherein the operative end member and the touch surface are axially displaced from the one or more nozzles by a distance determined to limit the proximity of the one or more nozzles to the skin of a subject to no less than the desired spray application distance.