Originally Posted by mrsD

As we discussed in PMs... this treatment started out with a big fan fare... and with time the improvements were sketchy.

It is actually a form of prolotherapy, where a person's own platelets are concentrated from the blood and reinjected into the injured site. Some famous athletes, including Tiger Woods, have tried this treatment.

For PN I would ask this question:
Exactly where should this be injected? Since PN can be referred pain from the spine, hip, or knee, when feet are concerned.

Where in the foot would the injection go? There are many nerves in the foot.

The term "symphony shot" does not Google well.
The other name for this is P.R.P therapy...Platelet Rich Plasma therapy.

Keep in mind sterility must be kept intact because this is an invasive procedure and if done sloppily, infection could be likely and very damaging. This is a medical procedure that should be considered with great care IMO.