I had a TON of tailbone pain after Griff was born - he was OP and I wanted a LOT of counterpressure during my labor, my poor mom nearly sprained her wrist! Later she said that it was possible that my tailbone broke, since I had so much pain afterward. Combined with a hideous episiotomy, there was no earthly way for me to sit down afterward for over a week, ow ow ow ow ow!
It did finally, and slowly, get better. I didn't need any intervention from anybody, I just left it alone and time healed it. I don't remember exactly how long it took but I know it was a matter of weeks, not months, and I had no residual pain. And good news...my second son was also OP but I didn't want/need counterpressure and didn't have any tailbone bruising with his birth, hooray!
Non-painful tailbone thoughts headed your way.
may my heart always be open to little birds who are the secrets of living whatever they sing is better than to know - e.e. cummings