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Blisters in Children

Blisters in Children

What is a blister?

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?

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

  • 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

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.

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, 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.

Reviewed Date: 02-01-2021

Blisters in Children
Dermatology
Dr. Julia Burden
Dr. Judith Williams
Diseases & Conditions

Disclaimer: This information is not intended to substitute or replace the professional medical advice you receive from your child's physician. The content provided on this page is for informational purposes only, and was not designed to diagnose or treat a health problem or disease. Please consult your child's physician with any questions or concerns you may have regarding a medical condition.