Good information. Regarding the nerve block process to find the troubling muscle my wife has had three attempts at a nerve block. One in the caudal area and two in the buttocks which was driven by imaging techniques. To the surprise of the doctors all three has zero affect on her pain. We are now at another doctor who wants to inject a steroid into the lower spine where the pudendal nerve roots are. He indicated that there may be inflammation at this point that is causing the nerve pain. My response was "Well then lets find the cause of inflammation rather than trying to treat the symptom." The doctor said that due to poor posture (favoring one side when she had shingles pain) that the spine may be compressing that area and causing the inflammation. We are looking into an inversion table to help straighten out this area IF it indeed is the cause.

Interesting you should mention the hip area. My wife's pain is more towards the ends of the pudendal nerve. However, she responds well to massaging up near the hip. While it does not relieve the pain it makes it feel somewhat better. I will look more into this area as well as the sacrotuberous muscle area as possible entrapment areas. I am a believer in stretching as I was ready for both hip and knee replacements when the surgeon said to try PT first. It was amazing the relief I got and almost immediately. Now I am pain free in both areas. Also I can have serious lower back pain episodes if I don't keep these areas stretched properly. The pain is so intense I said I would rather pass two kidney stones then go through a lower back pain episode. Stretching was the key to resolving this problem.