A protective cover apparatus for an otoscope to serve as a barrier between the otoscope and an ear canal of a user is provided. The otoscope includes a camera body coupled to a camera head having an attachment groove. The protective cover apparatus includes an adapter with a tubular member that attaches to the camera head of the otoscope, a sleeve coupled to the adapter and having a central tubular member and an outer flared surface protruding from the top end of the central tubular member, and a cap coupled to the top end of the tubular member of the adapter and having a central opening that permits unobstructed access to the camera head of the otoscope.