This guy should invest in a jar of jock itch medicine among other toiletries mentioned here. Sheesh.
As for the touching, he may not know it annoys you.
You have the right to say how you feel. something like,
*it makes me uncomfortable when people touch me. I'd rather you didn't do that anymore, okay?* maintaining eye contact, and when he says ok. say *thank you* holding the look until he looks away. That may be all it takes.
I'm sorry you're having such a bad living and working situation. It won't always be this bad, hun. **HUGS**