Thank you for asking HCM
I have gone through your query. Your problem is most likely tenia corporis, a fungal infection
. For such condition i treat with clotrimazole
or miconazole ointment for local application for 1 to 2 weeks and Fluconazole
tablet weekly once for 4 weeks for stopping recurrance.I also advice them to wear dry and loose underwear and not to wear sweaty or wet cloths for long time. Anyhow its better to confirm your problem by a doctor preferably a dermatologist
.Hope this may help you.
Let me know if you have any further query.