Cold water rinsing is actually cold therapy in burn treatment, that is, rinsing, soaking or cold compressing of the trauma surface with ice water in the early stage of the burn, so as to achieve the following purposes: 1. rapidly reduce the temperature of the burned skin surface and resist the thermal burn to continue to damage the deeper layers of the skin to reduce the depth of the burn. 2, reduce pain, its pain relief effect may be cold water to make the skin temperature quickly drop to the pain value below 43 ℃, or block the epidermal nerve conduction, so that the pain sensation does not occur. 3, reduce exudation and edema, which is related to the improvement of capillary permeability after cold therapy. 4.To achieve the effect of cleaning the trauma, the cold water mechanical rinsing makes the trauma clean, clean and reduces contamination. Cold water irrigation is suitable for small area burns, especially limb and head and face burns.