Agree Shelley, pelvic floor PT was an immense help. Btw, a block of the ganglion impar is not the same as an ESI (in the epidural space). This may help to understand it a bit better.

"Ganglion Impar Block One place for this type of block is at the ganglion impar, a cluster of nerve cells in front of the joint between the sacrum and the coccyx. To get to this ganglion, a curved needle may be passed up from underneath the coccyx, or a needle may be passed through the sacrum/coccyx joint itself. Patrick Foye, director of the Coccyx Pain Service, UMDNJ: New Jersey Medical School, has found that these blocks can be very successful in treating coccyx pain."