A light-weight, semi-rigid wound shield protects wounds and intradermal therapy ports from impacts between therapy sessions. The wound shield comprises a domed cover forming a concave cavity above the wound or therapy port. A flange surrounding the cavity presses against the patients skin to deflect and distribute the force of impacts. The flange may include a self-adhesive layer on its bottom, or it may be secured with medical tape or a fitted bandage that overlaps the flange and the surrounding skin. A peel-away membrane covers the adhesive layers. A tunnel through the flange may connect to the cavity to accommodate a therapy tube which remains in place while the shield is worn. In an alternate embodiment, a base coextensive with the flange adheres to the patients skin and the wound shield removably couples to the base by its flange. The assembly comes in a sterile envelope or package.