Embarrassing: I have a foot fungus, need help (not athlete's foot)

I shared a dorm shower last year, and at the beginning of the summer, I got a foot fungus. nothing to surprising, living with many other people. But it still hasn’t gone away, even with Lamasil…

Here’s the thing. I don’t think it’s athletes foot. There is no itching, no burning, no pain what so ever. But the bottom of each of my toes is pocked and looks chewed up. There are literally holes in the first layer of skin (which has become thicker and turned opaque) what the heck is it?! And what can I do?