Thank you for asking HCM
I have gone through your query.Your friends problem is most likely fungal infection
.But it is better to show a dermatologist
and clarify it.For fungal infection i advise my patients to apply terbinafine or clotrimazole
ointment locally and to take tab fluconazole
weekly once for 1 month to stop recurrance.Hope this may help you.
Let me know if you have any further query.