The vet did a skin scraping before each injection. The first skin scraping there were a lot of mites - the 2nd one there was only 1 mite, but she gave the injection anyways. The last injection was only 6 days ago, so we'll be following up soon.

Thank you for the links and the info. I wonder why our vet gave the shots 3 weeks apart, when this says to do it daily?? Weird.

We just moved anyways and we are going to be switching to a local vet, so we can get a 2nd opinion there.