Hi doctor, I am 20 year boy and suffering from skin allergy called jock itch in groin area. I am consulting it with a good dermatologist and results are very effective. I am using the treatment since 15 days. I want know how much time it will took to complete this course? By the way itching is all gone and only black skin type of patch left, which is lightning day by day. To permanent get rid of it how much time should I take this course?