[Buster Brown]

Here are some YT threads where members talk about problems with the Yorkies loosing hair. Perhaps you might find some things to discuss with your Vet. Best wishes to you and Chloe.
http://www.yorkietalk.com/forums/gen...lopecia-x.html

http://www.yorkietalk.com/forums/yor...hair-loss.html

http://www.yorkietalk.com/forums/sic...sing-hair.html

http://www.yorkietalk.com/forums/sic...-her-hair.html

http://www.yorkietalk.com/forums/sic...s-disease.html