Suggest Treatment For Bruise On Knee And Lower Thighs

A couple days before Christmas, I got into a motorbike accident that left an enormous bruise on the inner side of the knee and lower thigh (the side of the knee). While most, if not all, the discolouration is gone, I still feel pain when I walk and if I set something with moderate weight on that spot. The pain isn t crippling, just annoying. Should I be concerned? Or do I just need to be patient...