A blister or bulla is a defense mechanism of the human body.
It consists of a pool of lymph and other bodily fluids beneath the upper layers of the skin.
It may be formed in response to burns or friction, and helps to repair damage to the skin.
If a blister is punctured, it forms an open wound and must be bandaged.
For more information about the topic Blister, read the full article at Wikipedia.org, or see the following related articles:
Editor's Note: This article is not intended to provide medical advice, diagnosis or treatment.
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