Will Falconer, DVM Moderator
Chronic ear problems are frustratingly difficult, though curable with professional help. It can take several attempts at individual remedies, each carefully evaluated with your vet homeopath, to get these guys moving to cure.
A key I've learned: the ear, while most bothersome, like horribly itchy skin, rarely has symptoms that lead to the curative remedy. It takes looking at the "rest of the dog" to get enough clues to get proper remedies chosen by your vet. Like: odd behavior; odd estrus cycles; some symptoms around eating or elimination, etc. Look beyond the ears and keep a good log of symptoms your homeopathic vet sees as significant, and update him/her on those at each appointment. Patience and attention to details and clear communication of same wins the game here.