Fucking lice!

I was reading my step son a bedtime story and he was scratching his head. I didn't pay much notice until he said "Mama my head is itchy". I looked in his hair and saw those white tiny fuckers. I fucking HATE dealing with lice! I asked did it itch at school today and he said yes. I should probably call his school to tell him about his lice so they can check the kids to stop a lice outbreak. Anyone have advice on how to get rid of lice fast.