Tailbone(coccyx) pain relief?

I have not fallen or done anything to my tailbone..it just started hurting about a week ago. I went to the doctor a couple days ago and she said it was coccydynia and that it would just go away on its own..and she also gave me some pain relievers(which do not help). The only thing I could think of was sitting in the floor(hardwood) too long. I cannot sit down or drive...even when I lay down, it hurts. Has anyone had this same problem? If so, how did you cope with it and how long can I expect my tailbone to hurt?