PiezoWave in Morganville, NJ: Extracorporeal shockwaves have been used successfully to treat chronic pain syndromes since the beginning of the 1990s. Extracorporeal shockwave therapy (ESWT) and trigger point shockwave therapy (TPST) are highly effective, non-surgical procedures to treat chronic pain in the skeletal muscles. The PiezoWave has significantly expanded the range of applications available to treat myofascial pain syndromes. The extracorporeal focused shockwave permits precise diagnosis and treatment of active and latent trigger points. Trigger points are small, thickened, pain-sensitive areas in a tense muscle which can cause significant pain, even at some distance from the trigger point.