OP, I sent you a PM too but I wanted to make sure you got this info. I saw this link and thought maybe it would help the little Doxie your friend rescued that has the back trouble:
Lil Back Bracer - Reducing back pain for small dogs - Dachshunds, Weiner Dogs, IVDD, Back Brace
Moo and Maddie Jo used to suck and chew on Mollie's ears (their sister) when they were all little. They never hurt her but poor Mollie ran around all the time with soaking wet ears! I always wondered if it was because her ears stood up and theirs don't

Now that I think about it...I remember them doing that to Peanut too...Oh My! I may have a little gang on my hands