My wife and I recently took in a pregnant stray(Cleo). She had her babies Alexander, Pumpkin, and Spice. They all are healthy fixed and vaccinated. Except for there ears. We have cleaned them time and again to no avail. Now all of my other kitties have ear infections. Two are on Baytril. The vet has been having me flush there ears once a day and treat the ears once a week. Are there any other suggestions. I would greatly appreciate it.