My first Yorkie as a child had terrible allergies. I was very careful when I bought my first Yorkie as an adult and was very fortunate with her lack of allergy symptoms BUT as she got older they got worse. She is now 5. I decided I was just going to take care of it sooner than later. I got a referral to the university teaching hospital at The Un. of Tennessee. You can see what they told me below in the link.
http://www.yorkietalk.com/forums/yor...atologist.html
She is still itching a bit. I am going to take her back and experiment with a different kibble for her.
The medicine that they gave her that has really help relieve the symptoms whatever the allergy is, is Hydroxyzine 10 mg.