We used to have a dog. One evening I noticed her shaking her head, looked up the behavior, & found out it was indicative of an inner ear infection. I got some Virgin Coconut Oil from the cupboard, softened it, and put it in her ear . . . holding that ear up so it would slide down into the ear. She went back to bed. The next morning, no more head shaking . . . ever. . . .Any advise to help save poor Marbles would be greatly appreciated!