Use the form below to search the Health Library.

  
 Health Information  Health Articles  Any
http://search.ebscohost.com/login.aspx?direct=true&db=hlt&AN=2010812556&site=ehost-live

Blisters

  • Definition

    A blister is a fluid-filled bump on the skin.
    Blisters
    Nucleus factsheet image
    Copyright © Nucleus Medical Media, Inc.
  • Causes

    Blisters have many different causes. These may include::
  • Risk Factors

    Factors that increase your chance of getting blisters include:
    • Wearing ill-fitting shoes
    • Repetitive work with hand tools
    • Getting a sunburn or frostbite
    • Severe skin swelling, especially of the legs
  • Symptoms

    Blisters may cause:
    • Fluid-filled bump on the skin, which is often round
    • Fluid is usually clear, but may be bloody, cloudy, or containing pus
  • Diagnosis

    You will be asked about your symptoms and medical history. A physical exam will be done. Blisters may be diagnosed on appearance. The cause can be determined by the activity you were doing when the blisters appeared.
  • Treatment

    A blister will often heal without treatment. You may need treatment for a condition that is causing the blisters.
    Some general tips for treatment include:
    Protect the Area
    • Be gentle with the injured area. To prevent further injury, use a bandage made for blisters. Also, put a cushion around the blister to protect it. The blister should begin to shrink in about seven days.
    • Do not pop or lance the blister. Opening the blister increases the chance of infection and delays healing.
    • Do not scratch any blisters. If it is infectious, scratching may spread the infection. It also puts others at risk for getting the infection. Try over-the-counter medication that is applied to the skin to relieve any itching or discomfort. If you still have problems with the blisters, call your doctor.
    Wash the Area
    If the blister is closed, gently wash the area with soap and water. Apply a bandage to protect it.
    If the blister is open, gently wash the area, apply an antibiotic ointment, and then cover it with a sterile dressing or bandage.
    See Your Doctor If:
    A blister usually heals by itself. See your doctor if:
    • The blister is unusually large—bigger than a nickel
    • The blister is in a sensitive area, such as on the face or the groin
    • The blister is associated with a burn
    • There are signs of infection, such as increasing redness around the blister, red streaks, severe swelling, pus drainage, fever, or an increase in pain
  • Prevention

    To help reduce your chance of getting blisters, take these steps:
    • Wear shoes that fit properly.
    • Always wear socks with your shoes.
    • Wear sports socks when exercising or participating in sports.
    • Use gloves or protective padding when working with tools.
    • Wear a hat, protective clothing, and sunscreen when out in the sun.
    • Wear sandals in public showers to protect your feet from athlete's foot.
    • Wear long shirts and pants when working outside to protect yourself from poison ivy.
  • RESOURCES

    American Academy of Dermatology http://www.aad.org

    National Institute of Arthritis and Musculoskeletal and Skin Diseases http://www.niams.nih.gov

    CANADIAN RESOURCES

    Canadian Dermatology Association http://www.dermatology.ca

    Health Canada http://hc-sc.gc.ca

    References

    Blisters. Better Health Channel website. Available at: http://www.betterhealth.vic.gov.au/bhcv2/bhcarticles.nsf/pages/Blisters. Updated January 2014. Accessed September 3, 2014.

    Blisters, calluses, and corns. Kids Health—Nemours Foundation website. Available at: http://kidshealth.org/kid/ill%5Finjure/aches/blisters.html. Updated October 2011. Accessed September 3, 2014.

    Ramsey ML. Avoiding and treating blisters. Phys Sportsmed. 1997;25(12).

    Revision Information

  • Connect with Steward

    Visit Our Twitter Feed Visit Our Facebook Page Email This Page Print This Page

    Subscribe to our patient e-newsletter

    Copyright © 2014 Steward Health Care
    Connect Healthcare Panacea CMS Solutions