Scalded for a long time seems to rise countless small blisters, may be scalded after the exudative period, vascular endothelial cell damage, intravascular plasma extravasation to the tissue interstitial space, accumulation in the epidermis under the formation of blisters. Three to five days after the scald belongs to the exudative stage, due to the damage of vascular endothelial cells, vascular permeability will increase, the plasma in the blood vessel extravasation to the tissue interstitial space, and then accumulate in the epidermis will form blisters. Different depths of traumatic injury have different skin lesion performance, one degree of burns will not form blisters, the second degree of burns will form blisters, may be countless small pinpoint blisters, may be relatively large blisters, the third degree of burns generally do not form blisters. After the scald up countless small pinpoint blisters, relatively small does not need special treatment, and do not have to deliberately pick through; volume is relatively large, high tension, you can pump the liquid under close disinfection, and pay attention to the protection of the wound, to avoid contamination. After the degree of burns is more serious, it is recommended to seek medical attention and treatment in a timely manner.