PLE is a serious thing so diet is going to be key. I recommend a consult with
Holistic Veterinarian Pet Nutritionist Holistic Pet Care susan davis she has helped alot of dogs with ple and some on deaths door so i am a believer in what she does works for ple dogs.
You can contact luvmysissy on here she has alot of experience with ple in dogs. I will pm her as well
also bleuboybarber on here her dog jill had a severe case of this and is doing great and is on the system that susan davis has as susan is a nutritionist
here is info
http://www.petplace.com/dogs/protein...ple/page1.aspx
pm jodi she will help you
http://www.yorkietalk.com/forums/member.php?u=9980