Hi Condor,
I am sorry to hear you haven't healed yet.
Was the wound cultured for infection to determine specific antibiotic need?
If the wound was left open has someone in your family been trained to care for it and do the dressing changes for you? A wound care consult could be ordered if it doesn't start to progress.
Some meds can interfere with healing and of course nutrition is important.
I hope you heal up soon!