Bone Bruise in Heel help?

I was playing football last week on field turf, and came down on my heel very hard. It was tingly for a few moments then just hurt. I went to the doctor and she took x rays and said its not broken, it is a bone bruise. She did not give me a timetable on how long it should hurt. How long should I expect the pain to last? I am on crutches and making sure I keep weight off of it.