Blisters are small pockets of liquid that form on the outer layer of the skin after the skin becomes damaged (usually caused by forceful rubbing or burning). Blisters prevent the area from becoming further damaged by protecting the skin underneath and giving it adequate time to heal. Blisters are filled with serum, which is essentially blood plasma without fibrinogens (the red blood cells and clotting agents are removed). However, some blisters may be filled with blood (blood blisters) - if they become infected or inflamed they can also be filled with pus...
via Health News from Medical News Today Read More Here..
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