When is my sprained ankle going to heal?

I severly sprained my ankle about ten days ago. But the swelling is still slightly there on my bone. Also there is a HUGE blue bruise under neath the bone and it carries on throughout to the otherside. About the third day of spraining it i was walking on it, I still limp on it too. I cant run on it or jog and it hurts much more in the evening. I do however where the ACE bandage every now and then, but it hurts do bad. I need to knoww when it is going to get betterrr.