Hello, Thank you for posting on HCM. From your description, it seems you are having tinea crusis, a kind of fungal infection. Fungal infections are notorious for being persistent and recurrence if not managed properly. I would recommend you consult your dermatologist for proper management. I usually suggest a proper course of oral antifungals like fluconazole or itraconazole along with antifungal cream like luliconazole for local application. Additionally, use antifungal dusting powder to keep those areas dry and use ketoconazole soap for rinsing those areas. Takr antihistaminics as required for itching. Maintain hygiene and avoid tight undergarments. Hope this will take care of your problem. Thank you Dr Hardik Pitroda