McKesson, Impregnated Dressing, Case Of 4Product Description McKesson Hydrogel Impregnated Gauze Dressing 4" x 4" (10. 1 cm x 10. 1 cm) Primary dressing for wounds with light or no exudate that add or maintain moisture. Helps maintain a moist wound healing environment to assist in autolytic debridement. To protect peri wound skin from maceration, apply a moisture barrier ointment or barrier film. Recommended Secondary Dressings: Cover with an appropriate secondary dressing depending on the