<human>: I've been told that I have a fungus on my toenail. What is this?
<bot>: That’s not good news! It sounds like you may have athlete’s foot, which is caused by a fungus called Trichophyton rubrum. It’s a common problem and can be treated with antifungal medications such as terbinafine or itraconazole. You should consult your doctor for more information.