I just got back from the vet about Sierra's skin problems. The vet did yet another skin scraping. It came out clean and she has ruled out mange, thank goodness. She asked if we are still having a problem with fleas and although we treated the house and that has had a significant impact on the fleas, there are still a few hanging on. Until I saw them on the cat, I actually thought they were all gone. She thinks Sierra has an allergy to flea saliva. She explained that even one flea bite can cause a dog with this allergy to drop coat and itch like crazy. She said the itching can last 3-4 weeks after the bite and makes the poor dog miserable.
So the fight with the last remaining fleas is resumed, and she gave Sierra a shot for the allergy that should help reduce the itching. She said to call if she doesn't stop itching by the weekend. So I guess we wait til then and treat the house in the meantime.
Poor kitties are not going to be happy to learn they are getting dipped again... LOL! They see the bucket and start with these pitiful mews that break my heart.