My wife bruised her left shin badly, just above the ankle by falling off the treadmill 4 weeks ago. There was a huge swollen bump & large hematoma immediately (2 in diameter). The bruise was exactly on top of a previous bruise. Urgent Care recommended icing every couple of hours for two days & then leave it alone. The swelling went down over night & the hematoma has shrunk over time, but now it is about the size of a half-dollar with a hard, black scab. It has oozed a small amount of blood occasionally, but very little. The scab appears to be loosening around the edges, & there is some redness surrounding the hematoma, but it s not warm to the touch. Should we just leave it alone & let the scab eventually fall off? Any idea how long it takes? Thanks, Rod