I have a round rash on the side of my thigh and I have no idea what it is and what I should do. At first I thought it was ringworm and I put on cream specifically for ringworm and it looked like it went away, but then another rash came out in the same spot, bigger, and a little different than the one before. What should I do? Here is a picture: http://tinypic.com/r/vxp5zs/5