Suggest Remedy For Swelling & Bruises In Ankle

I slept on my ankle indian style and not it's swollen, tender to the touch (not painful to walk, just stiff), and it's swollen. The painn comes mostly around my ankle bone and the bruising goes from mid-top of my foot up to sock level, only on the outside of the ankle to the front (almost to the inner ankle). Any ideas? Thank you