Already posted on horse vet corner and horse health discussion.
This pony mare developed an abscess in a period of a few days on July 27th. There was no broken skin previously. I rode her and she suddenly couldn’t bring her left hind up and forward to step over a pole, 3 days later a huge abscess erupted right before my eyes as I brought her in from pasture. Kept it clean let it drain, didn’t heal so we did a round of uniprim, still didn’t heal. It would heal to a pin point but still drain and have a hard feeling behind it. Beginning of October the vet ultrasounded it and found nothing, X-rays showed nothing, no sequestrum, she debrided 8 inches into the “abscess” pulling out dead scar tissue until she couldn’t reach anymore. She was on doxycycline twice a day for a month and metronidazole 3 times a day for a month. Did bandage changes every 3 days until it closed. It was officially closed and I removed the stitches on November 17th and here she is with this damn thing again! It’s all hard around it. In the center of the exposed tissue is a grey spot. I cleaned it with betadine and put curicyn clay on it. Not sure what else this can be but the next step is the vet putting her under general and slicing her leg open entirely and even then she said it’s no guarantee that we will find anything. I’m beginning to wonder if this is cancer, she already has melanoma under the dock of her tail. She’s a 2008 Connemara pony. If it is cancer I wonder what the treatment and prognosis is or if euthanasia would be the best option.