Most people associate dangerous and damaging burns with heat and fire, but injuries associated with cold burns, or frostbite, can be equally damaging and serious. Similar to a heat or fire burn, frostbite occurs when skin or tissue is damaged (in the case of cold burns, due to contact with extreme cold). When parts of the body are exposed to low temperatures for long periods of time, blood vessels constrict to help restrict blood flow and protect an individual’s core temperature. This combination of cold temperature and restricted blood flow can freeze the tissue, causing permanent damage.
The frostbitten areas should be placed in warm water (never hot water) or if water is not available, they should be put in contact with the warm skin of another person. While it may seem natural to warm up afflicted skin with friction. Click Here :http://www.hepcsurvivors.com