I cleaned, soaked and sterilized the foot. Then used a scalpel to pull the core away from the skin. It did not bleed much and the core was gray/brown, smooth on the outside and hard and crumbly. It was not black or oozing. I was able to take it out in bits and cleaned a 1/4in deep hole in the foot. Then instead of the puss and cottage cheese material I was expecting, I hit live skin. It bled and the hen was not happy. I did use a 1/2 in sterile needle to flush the wound well with sterilized water, Epsom salts, tee tree oil and Betadine. It flushed out clear.
So the question: Did I do something wrong? Why is there no puss? Could it be the age of the infection? Since she has been fighting so long, is that why it is not pussy and the core was hard and worn down. What else should I do? I plan to put antibiotic ointment in the wound and rewrap it often. Just kind of baffled.