I've found it really good for my dog's paws and tum (always licking and biting them and scratching lately :( ) ears also looking great :) :)
Spanishwaterdog,
I had a dog like this, cost a fortune in steroids, antibiotics etc, always at the vets, always irritated ear, when he went in to have teeth scaled I asked them to check for a polyp, as they couldn't see right into the ear for the swelling. Vet poo-poohed the idea but I pointed out it was my money ;) (vet wanted to resect the ear canal

) It was a polyp on a long fine stalk, vet just snipped it at the base and the dog was heaps better, the thickening of the ear lining went back to normal over the next few months.
Maybe worth a thought?