There are rashes on my thighs in the groin area. It is a very small area which is infected and it does not spread to other parts or increase in size. Its just the limited area which has been like this. The skin has blackened there. These rashes are persistent since many months now. I clean it with dettol and use dettol soap but it doesnt go away. Please suggest some medicines which i can use to clear my skin and make it normal and spotless. Thanks