Marydean,
yes this acupuncture treatment is designed for old wounds, for existing scars.
Matilds mummy,
yes this treatment is often used to aid in VBAC as the existing scar can be seen as an energetic block to the descending of qi. I know of no study that shows reduced incidence of rupture, however by increasing blood flow to the area around the scar, the surrounding tissue would be more responsive to the movement (stretching) encountered when bub finds the way out!
I find this treatment easier to do earlier (late 2nd tri- onwards) in the pregnancy as the scar is more accessible. It can also be done before conception of the next bub.
Yes according to principles of TCM sensitivity to touch would increase with blood flow. I hope this answers your questions!
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