Ice for the first 48 hrs. and then gentle moist heat! I walked off a curb Apr. 1 and did about the same thing. Hit my face and head so hard that I didn't feel the hit on my leg. Developed a large hematoma that took 4 mos. to heal. My face and head were better long before. I move a little slower these days and pay a little more attention. Multitasking just isn't my game anymore. I was trying to unlock the car with my key fob thingy and kept on walking, forgetting there was a curb to step down. Lesson learned.