I cleaned my dogs ears with baby wipe, then I had an spray I used in her ears, then I used peroxide on a cotton ball, lastly I used a petroleum jelly, cause she has a scaly scab look in her ears. After I did all of that she was having trouble with her ears. It was red, but from it being messed with so much. I then gave her antihistamine pill. Right now she is quite and resting. She seems to be eating fine. I have three other dogs, was wondering if her itching would spread to the other dogs?