Blisters
Blisters
Blisters (/ˈblɪstər/) are small pockets of body fluid (lymph, serum, plasma, blood, or pus) that form in the upper layers of the skin (epidermis). They are typically caused by forceful rubbing (friction), burning, freezing, chemical exposure, or infection.
Etymology
The term "blister" comes from the Middle English "blister" or "blister", which is probably from the Old Norse "blæstur" or "blastr", meaning "a swelling or a blister".
Causes
Blisters are often caused by injury to the skin from heat or from friction, such as wearing shoes that don't fit properly. They can also be caused by certain medical conditions, such as chickenpox, herpes, and impetigo.
Treatment
Treatment for blisters often involves protecting the area from further damage and allowing the blister to heal on its own. In some cases, a doctor may need to drain the blister. Over-the-counter treatments, such as hydrocolloid dressings, can help to protect the blister and speed up healing.
Related Terms
- Friction Blister: A blister caused by the skin repeatedly rubbing against another object.
- Blood Blister: A blister filled with blood, typically caused by a pinch or crush injury.
- Fever Blister: A term often used to refer to blisters caused by the herpes simplex virus.
- Dermatology: The branch of medicine dealing with the skin and its diseases.
External links
- Medical encyclopedia article on Blisters
- Wikipedia's article - Blisters
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