My dad has two small, non raised, semi-circular lesions around his knee. When they first appeared, they seemed to be a little bit itchy, but now there is no pruritis. The inner area of the circle has a look that looks like scar tissue, though it's not. He does work overseas in South Korea, and it appeared over there. I'm wondering if its a fungi. Because originally I thought it was some sort of dermatitis, and I had him use some cortisone on it, some that I used myself for my eczema. But the thing is that South Korea is humid, not dry, so it may be fungi?