One of non-pharmacological methods of relieving labor pain is administration of heat and cold in various patterns. Cold
could cause pain decrease through various mechanisms including reciprocal induction of numbness, impeding pain
perception by stimulation of peripheral neural receptors,facilitating energy flow in points of acupuncture, declining
muscle tension, alteration of neural transmission velocity,deceleration of transmission of pain signal to central nervous
system, and also distraction from pain.[10,11]