Help!! Benny is ill!!

How old is Benny?

 

You stated that this incident occured about 3 weeks ago. It sounds like you've done everything possible to get him back to normal health. Have you seen any improvement at all? It sure sounds like he's acting normal to me.

 

Your vet mentioned ear infection. There's an ear flap covering his ear canal. Wrap him snugly with a towel and lay him on his side. You can lay him under a bright light or have someone hold a flashlight over his ear while you pull back the ear flap and take a look inside the ear canal.
His ear canal should be clear and clean of any gunk or debris. If there's gunk, it's possibly a bacterial ear infection, fungus, or could be ear mites. Dont forget to flip him over and check his other ear canal. Let me know if you see any gunk in his ear. I can refer you to a link on how to treat it.

 

Yes, scaly leg mites can eat right through a leg or foot. Mix some epsom salts in a container of warm water and soak his feet and legs. Once the debris between the scales is loosened, use an old toothbrush and gently and softly scrub between the scales as best as you can. The warm water should be soothing to him and hopefully he wont struggle. After about 30 minutes (or longer if you wish) remove him from the water and dry his feet and legs. Then rub vaseline onto his feet and legs. I have used Nu-Stock before with good results. Continue reapplying vaseline until scales lay flat...it may take several weeks or longer, be patient.