Classmates: Lotrimin

Eczema vs Ring Worm?

So I posted Friday night about my boy friends daughter coming over Friday with what looked like to me ring worm. She showed it to me, said her mom looked at it & said was eczema. It's on the back of her leg, upper thigh, not behide the knee. My son has eczema since birth. I know what it looks like & her leg is poerfect circle about size of nickle. Red, darker around edge, light inside. She said it does not itch. So here Is my ?. Her dad believes her mom its eczema. I showed him picture, but he thinks I am making a big deal over nothing. Her...