A first-degree burn affects only the outer layer of skin, causing redness and pain but no blisters. These burns typically heal within 7 to 14 days with proper home care. The single most important thing you can do is cool the burn with running water as quickly as possible, then keep the area moisturized and protected while your skin repairs itself.
Cool the Burn With Running Water Immediately
Hold the burned area under cool (not cold) running water for a full 20 minutes. This step does more than just relieve pain. When delivered within 3 hours of the burn, 20 minutes of cool running water reduces cell damage, improves wound healing, and decreases scarring. The sooner you start, the better.
Twenty minutes feels like a long time when you’re standing at a sink, but cutting it short reduces the benefit. Set a timer. If the burn is somewhere difficult to hold under a faucet, like your shoulder, use the shower or pour water over the area continuously. Don’t use ice or ice water. Ice can irritate burned skin and cause additional damage on top of the original injury.
What to Apply After Cooling
Once the burn has been cooled, gently pat the area dry and apply a thin layer of aloe vera gel or a plain moisturizing lotion. Aloe vera has some evidence behind it for superficial burns. A systematic review found that aloe vera products shortened healing time by nearly 9 days compared to control treatments in first- and second-degree burns, though the specific formulations varied across studies. A pure aloe vera gel without added fragrances or alcohol is your best option.
The goal with any topical product is to keep the wound from drying out. Dry, exposed burn tissue heals more slowly and tends to be more painful. Reapply aloe vera or moisturizer two to three times a day, or whenever the skin feels tight and dry.
For pain, over-the-counter options like ibuprofen, naproxen, or acetaminophen all work well. Ibuprofen and naproxen also reduce inflammation, which can help with swelling.
Should You Cover the Burn?
Most small first-degree burns don’t need a bandage, but covering the area can protect it from friction and keep it cleaner. If the burn is in a spot that rubs against clothing or gets bumped throughout the day, a light non-stick gauze pad held in place with medical tape works well. Avoid adhesive bandages that stick directly to the burned skin, since pulling them off can damage the healing surface. Change the dressing once a day, or whenever it gets wet or dirty.
What Not to Put on a Burn
A surprising number of home remedies make burns worse. Butter, coconut oil, toothpaste, raw egg, and tomato are all commonly suggested and all bad ideas. These substances can introduce bacteria directly into damaged skin, and many of them trap heat against the wound instead of letting it cool.
Rubbing alcohol is another one to avoid. It irritates burned tissue, intensifies pain, and is flammable, which matters if the heat source is still nearby. If blisters do form (which would suggest the burn is deeper than first-degree), don’t pop them. The fluid inside is part of your immune system’s response, creating a protective barrier against infection.
What Healing Looks Like
For the first day or two, expect redness, warmth, and tenderness. The pain usually peaks within the first 24 hours and then gradually fades. After a few days, the outer layer of damaged skin will start to peel or flake off. This is normal and is your body shedding the injured cells as new skin forms underneath. Don’t pick at peeling skin, as pulling it off prematurely can expose tissue that isn’t ready to be uncovered.
Most first-degree burns heal completely within 7 to 14 days without leaving a scar. During this time, keep the area moisturized and avoid re-injuring the skin.
Protect Healed Skin From the Sun
New skin that forms after a burn is more vulnerable to sun damage than the surrounding tissue. UV exposure on a recently healed burn can cause permanent changes in skin tone, either darkening or lightening the area compared to the rest of your skin. Sun protection is recommended for at least one year after a burn injury. Use sunscreen with SPF 30 or higher on the area whenever it will be exposed, or keep it covered with clothing. This applies even to minor burns that seem fully healed on the surface.
Signs the Burn May Be More Serious
A true first-degree burn looks like a sunburn: red, dry, painful, but with intact skin and no blisters. If you notice blisters forming, white or waxy patches, or areas that look charred, the burn has gone deeper than the first layer of skin and needs professional care. Burns on the face, hands, feet, groin, or over a joint also warrant a medical evaluation regardless of depth, because scarring in those areas can affect function. The same goes for burns that wrap around an entire limb or cover a large area of the body.
If a first-degree burn isn’t showing improvement after two weeks, or if you notice increasing redness, swelling, oozing, or a foul smell at any point during healing, the wound may be infected.