Hi, for a few years I've had these little flat round spots on my skin. They don't itch, and I don't feel them in any way. They go away when I use clotrimazole, but they always come back. Mainly they appear around my crotch, under my knees and under my arms. The fresher they are when I notice them the faster they go away. What is it and, how can I get them to go away and STAY away?