I injured my coccyx in a bus incident a few years ago. From time to time I would have terrible pain. My husband who is a massage therapist found your website and tried the external manipulation on me (see Brenda's story). I bend over, he puts to fingers on my coccyx and pulls/holds while I slowly and a bit painfully sit up. It give me GREAT relief for months. From time to time I get another spasm, but he has probably only had to give me the treatment five times in the last few years.
It has been such a help. Thank you for posting it!