Hi it might be fungal infection tinea might be the diagnosis
Wash twice daily
You can try
Tab Itracanazole 100 mg once a day for 7 days
Tab prugo 10 mg once in night
Apply nadibact plus oint twice daily
Next Steps
Mostly responsive if it won't works pls do consult dermatologist near your place
Health Tips
Apply moisturizer to avoid dryness and irritations