In early July 2023, I had a walk-in visitor to my pharmacy. "Doc, have you got anything for painful sores on my feet?" This was a 50-year-old male, First Nations, Height about 6 feet, weight about 230 lb. He is self-employed as a chicken-vaccinator; His full day of work consists of standing inside industrial chicken coops and vaccinating all the chickens against salmonella. It is difficult work in a dirty environment. He complained that he had developed large sores on one of his feet-- And also a deep sore on his abdomen, near his navel, which he attributed to an accidental needle stick, courtesy of a chicken that had gotten out of control. He was most concerned with his feet. The pain from the sores was making it difficult to stand up, and he had to stand up in order to keep vaccinating chickens. I was able to examine the sores. The most troubling one was a tunnel about 5 mm in diameter going into the right second toe about 3 to 4 mm deep. It appeared clean and h