How to care for a big nasty scrape and not let it get infected?

Skin that has been so scraped that it is now a big red mass. Let it puss up and breathe? Also, there is a peice of toilet paper stuck in it and it hurts so bad when i try to take it out, if I take a warm bath will it help loosen out the toilet paper? Or will that be bad for the whole thing? WHat should I do abot this whole mess? I cant go to the doctors.