Question: I Fell Off My Bicycle And Bruised And Scraped

Question: I fell off my bicycle and bruised and scraped the upper side of my leg under my knee. I did not ice it or treat it. Two days later, the bruise was pretty swollen, and suddenly had a sharp, burning sensation each time I took a step with that leg. The painful burning improved, but now I have a lot of numbness in the area and still the burning sensation, especially when I touch it. Can I still ice it? It's been four days. Why is the area numb? What is the painful burning sensation? Thank you.