I'm sorry that your question wasn't answered in a timely manner. There's little question that antibiotics alone won't suffice at this time. These wounds need to be surgically opened widely, debrided of devitalized tissue, flushed thoroughly with an antimicrobial solution such as chlorhexidine, and then either left open to drain or have drains sewn into the wounds in order to establish unhindered draining.
Please respond with further questions or concerns if you wish.
Thank you for the pic. The wounds are old and have remodeled and so I can't know what the original appearance of them was. Was she bitten by another dog? Did she do this to herself due to an allergic dermatitis (pyotraumatic dermatitis/hot spot)?
A curious history, indeed. Was she being administered any drugs (drug reaction)? Have you had a problem with spiders - black widow, e.g? Was the possibility of vasculitis - an autoimmune skin disorder - discussed with you? Her vet should consider culturing and biopsy of the wound.
Perhaps the antibiotics are kicking in but if the infection is secondary to an underlying condition, that condition needs to be clarified and appropriately treated. I can't set a follow-up in this venue so please return to our conversation - even after rating - with an update at your convenience. You can bookmark this page for ease of return.
I appreciate it. I'll watch for your next post.