How did they rule out parasites?
Did they grow out a culture for 10-14 days? If not, pleassssssse do one! Yorkies are prone to ringworm (compared to other breeds) and this sounds as if it may ringworm.
__________________ ~ A friend told me I was delusional. I nearly fell off my unicorn. ~
°¨¨¨°ºOº°¨¨¨° Ann | Pfeiffer | Marcel Verdel Purcell | Wylie | Artie °¨¨¨°ºOº°¨¨¨° |