Hey - found your chat when looking up dry itchy ears in a lop rabbit. I too, have a very fat!! ( sorry Benjamin giant lop rabbit) with very itchy ears. Have had him to the vet to have his ears scoped and they were clean, no mites not even ear wax. Am beginning to think it might be something that he eats. We have eliminated anything with corn, stopped his banana treats and limited his treat of dry bread. It is beautiful here this time of year so he is off spring or field greens and is eating dandelions and clover. He is a very large fat boy about 16 pounds. Am wondering if he is "hot"and that is what is effecting his ears because he is so big. Am wondering if the alfpha hay? only stuff that he will eat.