Hi, I have five beautiful babies and I live in a very wet environment, so we used to suffer a lot with this infections. My vet gave me the cheapest trick to prevent them, and I can assure you that it works. Use a cotton swab with a little bit of alcohol and wipe the inner part of the ear as your vet told you. Do this every two weeks and the problem will disappear forever.
Try it out and I hope it helps you...
Good Luck...
