The Basics
Written by the doctors and editors at UpToDate � �
What are blisters? " � Blisters are fluid-filled bumps on the skin. � �
What causes blisters? " � Many things can cause blisters, including: � �
- Something rubbing or pressing against the skin " � This might happen from wearing a tight-fitting shoe or gripping a tool.
- Bad burns, often from something very hot (like a boiling water or a stove) or a sunburn
- Allergic reactions to something that touches the skin, such as poison ivy or poison oak
- Problems with the bodys infection-fighting system (called the "immune system " �)
What are the symptoms of blisters? " � The symptoms include one or more fluid-filled bumps on the skin. The fluid is usually clear. � �
Should I see a doctor or nurse? " � See your doctor or nurse right away if you are not sure what caused your blisters or if you have: � �
- Blisters in your mouth, near your eyes, or in or near your anus or genital area
- Blisters all over your body
- Painful blisters
- Blisters with pus inside
Will I need tests? " � Maybe. If you need to see a doctor or nurse for your blisters, he or she might do tests to find the cause of your blisters. This might include taking a sample of your skin. � �
How should I take care of a blister? " � To care for a blister caused by something rubbing or pressing the skin or a burn, you should: � �
- Wash the area with soap and water.
- Do not pop or poke the blister with a sharp object. Opening the blister makes it more likely to get infected and slows healing.
- If the blister pops, keep the area clean and cover with a bandage to protect it.
Do not scratch blisters from poison ivy. If you have poison ivy, your doctor might recommend medicine to ease itching or other bothersome symptoms. � �
Most blisters heal in about a week. � �
Can blisters be prevented? " � You can reduce your chances of getting blisters if you: � �
- Wear shoes that fit properly.
- Use gloves or protective padding when working with tools.
- Wear a hat, protective clothing, and sunscreen when out in the sun.
All topics are updated as new evidence becomes available and our peer review process is complete. � �
This topic retrieved from UpToDate on: Nov 04, 2014. � �
Topic 83674 Version 4.0 � �
Release: 22.8 - C22.208 � �
� � 2014 UpToDate, Inc. All rights reserved. � �
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