Need serious help. plz !!?

I sprained my ankle like 2 weeks ago. The doctor said it was a sprain. So I did ice and all of tht. Couple days later, I tried to walk but it still hurt. I tried again a few more days later, and I did not feel pain while walking. I did limp. I then realize that I can walk fine without pain but my ankle is still sprained. Why is tht?