What is the “spray and stretch” technique?
The spray and stretch technique is based on the theory that trigger points located in taut muscle bands are the principal cause of pain in fibromyalgia and in myofascial pain syndrome. A taut band in the muscle is identified, and then a vapo-coolant spray (ethylchloride or fluoromethane) is applied directly along the muscle band. Once cooled, the muscle is stretched along its long axis. This helps to relax muscle tension (via muscle spindle and Golgi tendon organ stimulation), improve local circulation, decrease the number of active trigger points, and reduce the amount of pain