evelyn1157, just wanted to say that I think you have been brilliant with this problem.
It is one of the most difficult things for a caring owner to cope with as there is so much worry attatched to it. You are a star!
I'm so pleased that things have improved so much, good on you!
People who have never had this problem don't really understand how awful it can be or how determined the dog can be.
Brilliantly done!