Mark it once you can do it without this page open.

How to do it

  1. Move away from the heat source and turn it off.
  2. Run cool, not ice cold, tap water over the burn for 20 minutes, even if it feels better sooner.
  3. Remove rings, watches and tight clothing near the burn before it swells, unless they are stuck to the skin.
  4. Cover it loosely with a clean nonstick dressing or a layer of plastic wrap.
  5. Leave blisters alone so the skin underneath stays protected.
  6. Ask a pharmacist about pain relief and follow the label.
  7. Watch over the next days for spreading redness, swelling, pus or fever, which can mean infection.

Stop and call a professional if

  • Call 911 for burns that are large, deep, white, leathery or charred, or for any burn with trouble breathing or smoke exposure.
  • Get medical care the same day for burns larger than your palm, on the face, hands, feet, groin or a joint, or from chemicals or electricity.
  • Get care for any burn on a young child or an older adult.
  • Take a certified class in first aid and CPR: this page is a refresher, not training or certification.

In an emergency, call your local emergency number, 911 in the US. Take a certified class to practice this with an instructor.

Common mistakes

  • Putting ice or ice water on a burn, which can damage the skin further.
  • Using butter, oil or toothpaste, which traps heat.
  • Cooling for only a minute or two.
  • Popping blisters.

Quick self-check

Three questions. Your last score is kept in this browser.

1. How long should you cool a burn under running water?
2. What should you put on a burn?
3. Which burn needs medical care?

Teach this to someone

A one-page sheet for showing a friend, a roommate or a kid: what to say, what to show, and one question to check it landed.

Words on this page

Sources

  • National resuscitation and first aid guidelines, 2025 guidelines. Checked September 28, 2026.

Last reviewed . First published .