I Ve Severe Itching In My Groin Area For The

I ve severe itching in my groin area for the past 8 months. initially my dermatologist prescribed me fintrix and momoz t for treatment. I used it for 3 weeks. then the itching has gone. then it came back after 2 months. itching and skin flaking with white patches in my groin area. again I used the same topical. I got relief. then now the symptoms are coming back after 2 months. kindly suggest a permanent solution.