My 7 month old lab had a spot of thining hair, a few months ago, on her cheek. I kind of thought it was a birth mark but finally we decided to just make sure and take her to the vet. The same day we were taking her to the vet we noticed a small bald spot on her ear. We get to the vet and they said it was demodex. We are all really nervous and worried about our pup. The vet treated it with (i think it was called) amitraz. She said she would have to come back in two weeks to do another scraping and see if she needed more amitraz. She said she would probably need it two more times. I can't help but be really nervous about it. She is such a good pup and we love her so much. I've read about generalized mange and realize it could be really bad. How worried should we be? Any advise or info would be appreciated.