Hello, Welcome to HCM, Closely opposing body folds like upper inner thighs, groin can trap sweat, heat and moisture, therefore making the area favorable for fungal proliferation. If I was the treating doctor I would have asked you to use a topical antifungal like clotrimazole twice daily, regularly for 4 weeks. One such cream that you can use is Candid-B cream, twice daily for 4 weeks. For the thigh and groin area. I would also suggest an oral antifungal e.g fluconazole 150mg once weekly for 4-6 weeks for a more complete cure An OTC antihistamine e.g cetrizine 10mg once daily would help you in symptomatic itch relief. An Antifungal dusting powder e.g clotrimazole dusting powder can also be used throughout the summers, it would not only keep the folds dry but also inhibits the growth of fungus thus preventing recurrence. Thank you.