I'm very much occupied with my good old dog right now; I don't know if he is going to make it over the next few days. If he does, he will still have some good times ahead. And a very happy and grateful owner.
I'll be back to let you know what I think about Haleys scratching problems. You have provided some very interesting hints which could help to clear up the problem.
Sorry for my delay in answering your post, but my heart is really heavy right now, and I can't but think about Toby (my dog).