Suggest Remedy For Pain And Swelling In Foot

I'm a cheerleader and on thrusday i was at the gym practicing some back flips on the tumble track and into a pit full of foam so anyways when i landed one of my flips half of my foot was in the tumble track and half was out i just felt a sharp pain and now my foot is kind of swollen and it does'nt hurt to walk its swollen around the metatarsal bones and it kind of hurts to the side whenever i walk i was just wondering what i could do about it cus i dont think i broke it or did i?