Questions about Crab Lice?(No, I don’t have it incase you’re wondering.)?

Crab lice is something has scared me since I knew about it. I don’t have crab Lice, but my question is how do people catch it? Cause I do not want crab lice. Is there a way to get rid of it? I was wondering cause if I did ever get it I would want to get rid of it, I am guessing there is some kind of cream for it cause there is a special shampoo for head lice and a special cream for body lice.

Also, is it true that it can be caught from a toilet seat affected with crab lice?
Thank you in advance.

Question posted courtesy of: What Does Lice Look Like