What's causing this itchy rash?

Jimmy is a 20-year-old boxer who presents to his GP with an itchy and painful rash on his forearm for the past three days.

Test your clinical know-how by taking the quiz below. If you select the wrong answer, have another go — you can try as many times as you like!


Dr Paul Muthiah is a GP on the Central Coast of NSW and medical co-editor of Australian Doctor.