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    Blisters in Children

    What is a blister?

    A blister is a bump on the skin containing fluid. Blisters are usually round or oval in shape. The fluid that forms underneath the skin can be bloody or clear.

    What causes a blister?

    Blisters are often caused by injury, allergic reactions, or infections, which may include the following:

    • Burns and scalds

    • Sunburns

    • Friction (such as from a shoe)

    • Contact dermatitis

    • Impetigo, a contagious skin infection

    • Viral infections, including chickenpox and herpes zoster

    • Fungus

    • Thumb-sucking

    • Medicine reactions

    The symptoms of a blister may look like other skin conditions or medical problems. Always talk with your child's healthcare provider for a diagnosis.

    First aid for blisters

    Blisters often heal on their own. Treatment will vary according to the cause. Some general guidelines for treatment may include:

    • Wash the area with soap and water.

    • Use a cold pack to help reduce swelling and discomfort.

    • Keep the area clean and dry. Don't burst or puncture the blister.

    • Use padding as needed in pressure areas.

    • If the blister bursts, place an adhesive bandage or dressing on the area to keep it clean.

    • Watch the area for signs of infection. These include increased warmth, swelling, redness, drainage, pus formation, or pain. If you see any signs of infection, call your child's healthcare provider. Antibiotics may be needed.

    Blisters that don't heal, or, blisters that keep coming back, should be seen by a healthcare provider.

    Online Medical Reviewer: John Hanrahan MD
    Online Medical Reviewer: L Renee Watson MSN RN
    Online Medical Reviewer: Michael Lehrer MD
    Date Last Reviewed: 2/1/2019
    © 2000-2019 The StayWell Company, LLC. 800 Township Line Road, Yardley, PA 19067. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
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