oh wow...lucky you! I'm sorry. My dog got a small nick on his ear and it broke open and spattered my walls with blood for weeks and weeks....it was a pain in my patootie to get it to heal.
Does your dog have prick ears or long? How big is the cut? Is it a nick or is it clean through the ear leather? I'm asking because if it's large, it may need stitches.
If he has long ears, this is what I did with my dog. I put antibiotic ointment on the ear, wrapped it with gauze, then put the injured ear on top of his head. Then I wrapped his entire head with vetwrap to keep the ear immobilized. You have to be VERY careful to not get the vetwrap too tight, as it will interfere with breathing. I also had to get a sticky ace bandage type tape from my vet called Elastikon to secure the top and bottom of the vetwrap to keep it from shifting.
I changed this every day. Once it started to heal, it developed huge thick scabs that were very fragile, so I started putting Austin in the tub during bandage changes and directing a hard spray of water on the ear. The cold hydrotherapy helped close off the tiny capillaries and kept the scabs under control.
Misti, mom to DS (12), DS (9), DD (3), and Mr. Man (October '10)!