Treatment of piriformis syndrome:

There is a location in the lower back, slightly above the bone that comes in touch with a chair when sitting down, where the sciatic nerves protrude from the pelvis.  The piriformis muscle is the muscle that runs diagonally across the location from the center of the pelvis to the femur.  If this muscle is swollen or excessively tense, it irritates the immediately adjacent sciatic nerves, causing tremendous pain. Patients who suspect low back problems may actually suffer from piriformis syndrome.   Since accurate diagnosis may be difficult for an ordinary physician to make, it is first necessary to consult a medical specialist in neurosurgery, orthopedics (bones and muscles) or neurology.

Data obtained in the U.S. indicates that considerable effects can be obtained using Botox treatment in cases of piriformis syndrome.