A mild burn, sometimes called a first-degree burn, heals on its own within 7 to 14 days with proper care at home. The key steps are cooling the skin quickly, keeping it clean, and protecting it while new skin forms. Here’s exactly what to do and what to avoid.
Cool the Burn Right Away
Hold the burned area under cool, gently running water for about 10 minutes. This is the single most important thing you can do in the first few minutes. Cool water pulls heat out of the deeper layers of skin and limits how much tissue gets damaged beyond the initial contact.
Use cool water, not cold. Ice water, ice cubes, or anything frozen can actually increase tissue damage by constricting blood flow to skin that’s already injured. You want the water to feel comfortable, not shocking. If running water isn’t available, a cool, damp cloth held against the burn works as a substitute, though running water is more effective because it continuously draws heat away.
What to Put on the Burn
Once the burn is cooled and gently patted dry, apply a thin layer of aloe vera gel or a fragrance-free moisturizer. Aloe vera helps reduce inflammation in the skin and supports the repair process. Look for pure aloe vera gel rather than products with added fragrances or alcohol, which can sting and dry out the area. You can reapply aloe vera several times a day as the skin feels tight or uncomfortable.
An over-the-counter antibiotic ointment is another option, especially if the skin is broken or there’s a small blister. Apply a thin layer before covering the burn with a bandage. Petroleum jelly also works well to keep the area moist, which helps new skin cells form faster than if the burn is left exposed to air.
Covering and Protecting the Burn
Cover the burn loosely with a non-stick bandage or gauze. Regular adhesive bandages can stick to the raw skin and tear new tissue when you remove them, so look for bandages specifically labeled “non-stick” or “non-adherent.” If you’re using gauze, a light wrap of medical tape around the edges (not over the burn itself) keeps it in place.
Change the bandage once a day, or sooner if it gets wet or dirty. Each time you change it, gently clean the area with cool water, pat it dry, and apply a fresh layer of ointment or aloe vera before re-covering. Small burns on areas that aren’t rubbing against clothing can be left uncovered after the first day or two, as long as you keep the skin moisturized.
Managing Pain
Mild burns can sting and throb for several hours after the injury. An over-the-counter pain reliever like ibuprofen or acetaminophen helps take the edge off. Ibuprofen has the added benefit of reducing inflammation, which can ease swelling around the burn. Follow the dosage instructions on the package and take it with food if your stomach is sensitive.
If the pain feels significantly worse on the second or third day rather than improving, that’s a signal the burn may be deeper than it initially appeared.
Leave Blisters Alone
If a blister forms, resist the urge to pop it. The fluid inside is sterile and acts as a natural cushion that protects the raw skin underneath while it heals. Popping a blister opens a direct path for bacteria to enter, raising the risk of infection. If a blister breaks on its own, gently clean the area with water, apply antibiotic ointment, and cover it with a non-stick bandage.
What Not to Put on a Burn
Butter, toothpaste, egg whites, and flour are all common home remedies that do more harm than good. Butter traps heat against the skin and introduces bacteria. Toothpaste is particularly problematic because it contains ingredients that irritate damaged skin: sodium fluoride is a known skin irritant, sodium lauryl sulfate can further inflame open wounds, and mint flavoring intensifies the burning sensation. Some toothpaste ingredients, like glycerol and sorbitol, can actually encourage bacterial growth when applied to a wound.
Ice and ice-cold water should also be avoided. While they feel soothing in the moment, extreme cold can damage tissue that’s already compromised.
What Normal Healing Looks Like
Most first-degree burns heal within 7 to 14 days. During that time, you’ll notice the redness fading gradually, and the outer layer of skin may peel or flake off. This is normal and similar to peeling after a sunburn. Don’t pick at the peeling skin. Once healed, first-degree burns typically leave no scar.
Keep the area moisturized as it heals and protect new skin from direct sunlight for several weeks. Fresh skin is more vulnerable to UV damage and can darken permanently if it gets sunburned before it fully matures.
Signs of Infection
Watch the burn daily for signs that it’s getting worse instead of better. The warning signs to look for are oozing or pus coming from the wound, red streaks spreading outward from the burn, increasing pain after the first couple of days, and fever. Any of these suggest an infection is developing and needs professional treatment.
A burn that hasn’t healed within two weeks, or a blister wider than about 2 inches (5 centimeters), also warrants a visit to a healthcare provider. Burns on the face, hands, feet, groin, or over a joint can be trickier to manage and may benefit from professional evaluation even if they seem minor.
Tetanus Risk With Burns
This surprises many people, but burns are classified as wounds that carry tetanus risk. The CDC categorizes burns alongside puncture wounds and crush injuries as “dirty or major wounds” because damaged tissue can allow tetanus bacteria to grow. If your last tetanus booster was five or more years ago, or if you’re unsure of your vaccination history, it’s worth checking with your doctor. This is especially relevant for burns that break the skin or involve blistering.