Ear Mites (clean, vet, black, skin)

[baby1nov]

I found out my dog has ear mites. I got a product from the Vet called Revolution. The vet cleaned her ears and put the Revolution on her back. Now my fathers dog had also been here and I told him his dog may have gotten them. He had Frontline on his dog. Will that prevent his dog from getting them? I'm a little confused on how the topical treatments work.. How will they kill the mites in the ears if they are done on the body? Any advice appreciated!

[2mares]

Frontline does help, but I dont know if it will get rid of a bad infestation. I have one dog that is very susceptible to mites. I use a cheap horse ivermectin. The topical meds are absorbed thru the skin to kill the parasites.