A blister is a bump on the skin that contains fluid. Blisters are often round or oval in shape. The fluid that forms underneath the skin can be bloody or clear.
What causes a blister in children?
Blisters are often caused by injury, allergic reactions or infections, which may include:
- Burns and scalds
- Friction (such as from a shoe)
- Contact dermatitis
- Impetigo, a contagious skin infection
- Viral infections, including chickenpox and herpes zoster
- Medicine reactions
Many of these symptoms may be caused by other skin conditions or health problems. Always talk with your child's healthcare provider for a diagnosis.
What is the treatment for blisters in children?
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, fluid leaking, pus 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 that keep coming back should be seen by a healthcare provider.
Dermatology Treatment at Children's National Hospital
The pediatric specialists at Children's National Hospital have the expertise to diagnose, treat and manage conditions of the skin, nails and hair common in infant and younger patients. Discover more about the treatments we offer.
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Providers Who Treat Blisters
Departments that Treat Blisters
The Division of Dermatology at Children's National Hospital continues to expand services as more families seek our expertise in the diagnosis and treatment of disorders of the skin, hair and nails.