How's Marty doing? I'm sorry, I'm just now seeing this - missed it last month.
Do you think it's leather ear? I've been researching all kinds of things the last week, because my 2 seem to have had some hair loss. Leather ear is a fungal thing, but not the same as ringworm. This is one of the best things I found about it
http://www.shooterdog.com/alexfaq3.htm - it's near the bottom of the page & she has 2 pix of yorkies, but she doesn't show the back of their ears - lots of good info here.
From what I've read this sounds like what Marty has - maybe her treatment would work for you. I'm not sure if this is what I'm dealing with.
I go to a holistic/acupuncture vet he just gave me some shampoo PHYTOCLENS Herbal Shampoo - which has oils of Himalayan cedarwood
http://www.aroma-pure.com/cedarwood.htm and Eucalyptus leaf oil
http://www.aroma-pure.com/eucalyptus.htm
here's a site to order the shampoo if you're interested
http://www.tomerlabs.com/cgi-bin/sto...Products&xm=on