A device (10,210) for treatment of a canal associated with an orifice includes a flexible stem portion (20, 220) adapted for insertion along the canal and having an expandable member (24, 224) carried by the stem portion (20, 220) at or adjacent the distal end. The expandable member (24, 224) is for occlusion of an inner end region of the canal. A cap (40, 240, 340) mounted on the stem portion (20, 220), configured as a receptacle (42, 242), to close an outer end of the canal and to accommodate the surface(s) about the outer end of the canal. The cap (40, 240) thereby de-fines with the expandable member (24, 224), a treatment zone, wherein the receptacle (42, 242) is adapted to receive and store treatment fluid for contact with the surface(s) about the outer end of the canal.