[Mommy of Max]

I noticed about a week ago that one of Max's ears had a bit of crusty stuff on the outside edge. He had just been to the groomer and he would've told me if there was something wrong. So I cleaned his ear with a q-tip and some peroxide and didn't think anything else of it. His other ear was clean and looked normal. He is strictly an inside dog.

A couple of days later, I noticed that there was once again a little bit of crusty stuff on the same ear. I cleaned his ear again and just figured that it was normal.

So today, I was telling my mom about his ear, and now it's kinda red on the inside. His other ear is still clean and pink. Does he have an infection?