Hi there -
You may well have a fracture of the coccyx (tailbone) and, while often nothing is done other than to treat it symptomatically, that is, manage the pain while the bone is healing. Pain management may mean not only medication for the actual pain, but orthopedic devices to use to help make you more comfortable (such as a donut pillow to sit on, since sitting often aggravates the pain), and teaching you how to sit more comfortably during the healing process if you aren't able to use to donut pillow. Also, since this injury can cause a lot of discomfort at during bowel movements, you may want to use a stool softener (your doctor should be able to prescribe or recommend this, too).
Treatment, whether there is an actual fracture or not, is supportive and symptomatic. It was a very freakish accident, but then again, aren't they all? (We usually see these as the result of ice skating falls, etc.). The good news is it does heal. You should see your doctor or go to an ER if your doctor puts you off for very long, as the pain can be almost disabling at times.
I hope this is helpful to you. So sorry this happend! See your doctor for medication and accessories as needed and follow up with us as necessary. Good luck to you.
John Kenyon, EMT, CCT
Non-invasive cardiology tech, Emergency and Critical Care technician, Critical Incident Stress Mgmt. specialist