My 6 yr old indoor only cat had a puncture wound mid August. Not really sure how it happened but could have been our 17 yr old grumpy cat. The vet put her on antibiotics for 10 days and it seemed to heal. Mid September it opened back up with puss. Our vet did surgery to clean it out and put in drainage tube and more antibiotics . Tube stayed in for 3 days stitches for 12 days. Shortly after ending the antibiotics the wound started to open at both ends with more puss. The vet did a culture and changed the antibiotics. Several weeks later still not healed and still a little puss and seeping. He put her back on the original antibiotics and has us doing warm compress 3x day. 10 days back on the old antibiotics and it’s still not healed. He doesn’t seem that concerned that it’s been 3 months. Should it really take this long?