hi!! First, welcome to Yorkietalk!
Second....I can't offer any advice but I am "bumping" this post to the top so maybe someone else will see and be able to help. You posted in the general discussion section which moves prety fast. Im going to request this be moved to the Sick and Injured section. You'll get more responses that way.
I'm so sorry your little angel is having these problems. I hope you get more help.