A dressing assembly is provided including a cover overlying an inner cavity, spacing portions of the cover away from skin adjacent where the cover is coupled to the skin The cover includes a side wall extending up from a footing surface adapted to be placed adjacent the skin The side wall extends up to a top wall overlying the cavity. A door is provided in the cover through which the inner cavity can be accessed. The door can be sealingly closed and opened to selectively provide access to the cavity or to be closed and maintain a sanitary environment within the cavity. An adhesive membrane is provided adjacent the skin and beneath the footing surface with the adhesive membrane defining a floor of the cavity. A transcutaneous medical device can have portions thereof housed within the cavity where the cover protects it and keeps it sanitary.