When Sabrina was about 1 and 1/2 she started with that. It looked almost like little rust spots. We have a vet that raised Yorkies, and the first thing he said was absolutely NO chicken. She's allergic. It's amazing - she can eat anything else in the world, but if she gets something with chicken - there they are again for days. I just read a lot of labels. His Yorkie male was so allergic he would go into shock if he got chicken! They had to keep one of those epinphrine things around for him. (They Will get some somewhere, somehow). Hope this helps..
__________________ Frankie (the MOM), Sabrina, and Elvira |