Hello. Please dont think Im being bossy, but please please please get the cockeral to the vets as soon as possible. A few months ago I lost my beloved cockeral Monty to Bumblefoot, and I blame myself as, through ignorance, I left it too late to get it treated successfully. He had courses of antibiotics and I had to perform regular surgery on his foot, cutting it open to get the poison out. Despite all my and our vets efforts, he died. It was so very sad as he had been living in the house with us for weeks on and off for his treatments.
I wish you all the luck in the world with the poor little man. Once you start to handle him, he will be putty in your hands.
Mary.