Bibas Reddy, DO, MPH

A 79-year-old man presents to theemergency department with a painfullesion on his right forearm. Three daysearlier, he had scratched his arm whileremoving crabs from a trap. Initially,the scratch had bled slightly, and hehad self-treated with an over-the-counterantibiotic ointment and an adhesivebandage.