My poor chin started chewing her chest about 2 months ago. We took her to a vet immediately and they just gave us a topical anitbiotic and wrapped it. She is 14 yrs. old and vet said she may not make it through a surgery. He did research and couldn't come up with a reason why she was doing this. Time went by and it healed up nicely but there was a hard spot that I believed was just scar tissue. Within a day after the bandage was off she had torn herself open again. That cycle continued for weeks and now she has tore a new place on her right armpit! I don't know what to do now! She just chews her self and barks all the time. Anyone with advice? Please help!