A liquid streaming device and method of using same for treating a wound includes a body having a lower surface for application to skin region around the wound to be treated and to conform to the contour of the skin region, and an upper surface facing outwardly when the body is applied to the skin region; a recess formed in the lower surface of the body and encloses the wound when the body is applied to the skin region, and to define a chamber closed on one side by the skin region and the wound, and on the opposite side by the body; an inlet in the body on one side of the recess for introducing a treating liquid into an inlet side of the chamber; and an outlet in the body on another side of the recess for outletting the treating liquid from an outlet side of the chamber.