Blisters are small fluid-filled pockets on the skin, often caused by excessive rubbing, friction, burning, freezing, or allergic/chemical reactions. While most blisters are filled with a clear serum fluid, they can also be filled with blood (blood blisters) or pus.
* The information on this site is for informational purposes only and should not be used for diagnosing, treating, or preventing any health problem.
