I got trampled(literally) at school today, what can I do for my leg?

We had a band at school today and they were throwing water bottles into the audience. They threw one that landed next to me, and I wasn't even reaching for it when a kid from behind me jumped on me and knocked me down. My neck was twisted around my friends legs, and the kid had gotten the water bottle and was jumping up and down on my leg yelling "I got it, I got it." My knee and ankle are swollen and bruised from him jumping on them, and they hurt to put my entire weight on. What can I do for them? I've been icing them for an hour now, and have taken ibuprofen.