Abstract: A containment arrangement for safely and effectively treating a wound on a patient without contaminating attending personnel. The arrangement comprises a patient receiving first enclosure having a patient contacting periphery, a pressurizable source in communication with the patient through a wall of the enclosure for enlarging the enclosure, and a sealing means arranged in the patient contacting periphery. A hand manipulable fluid discharge nozzle is extendably arranged through the enclosure for providing controllable treatment fluid to the wound on the patient within the enclosure.