First-degree burns affect only the outermost layer of skin and typically heal within 7 to 14 days with proper home care. These are the burns you get from a hot pan, a curling iron, or too much sun. The skin turns red and hurts, but it doesn’t blister. What you do in the first few minutes and over the following days makes a real difference in how quickly you heal and how much pain you experience.
Cool the Burn With Running Water
The single most important step is running cool (not cold) water over the burn for 20 minutes. This works best when done within three hours of the injury, but sooner is better. The running water draws heat out of the tissue, stabilizes blood vessels, and reduces the inflammatory chemicals your body releases in response to the injury. Research from UC Davis Health found that this 20-minute cooling step measurably speeds up healing.
The water should feel cool and comfortable, not icy. There’s a meaningful difference. Ice, ice water, and very cold water can actually restrict blood flow, damage tissue, and delay healing. Cold also numbs the area, which means you can’t tell when the skin has gotten too cold. Leaving ice on a burn long enough can cause frostnip, a precursor to frostbite, on top of the burn you already have. Stick with cool tap water.
What Not to Put on a Burn
Butter, cooking oil, toothpaste, and egg whites are all popular home remedies that trap heat in the skin and increase infection risk. Butter and oil act like insulation, holding thermal energy against the tissue you’re trying to cool down. They also introduce bacteria. Skip anything greasy, and skip ice for the reasons above.
Cover and Protect the Area
After cooling, gently pat the area dry and apply a thin layer of aloe vera gel or a fragrance-free moisturizer. Aloe vera has solid evidence behind it: a systematic review of four clinical studies found that burns treated with aloe vera healed nearly 9 days faster than those treated with conventional methods. The aloe vera group also had a 95% healing success rate compared to 83% in the control group. Look for pure aloe vera gel without added alcohol or fragrances, which can sting and irritate raw skin.
Cover the burn loosely with a non-stick bandage or sterile gauze. This protects the damaged skin from friction, dirt, and bacteria while it repairs itself. Change the bandage daily or whenever it gets wet or dirty.
Managing Pain
First-degree burns hurt because the nerve endings in your outer skin layer are exposed and inflamed. Over-the-counter pain relievers work well here. Ibuprofen reduces both pain and inflammation, making it a particularly good choice. Acetaminophen is an alternative if you can’t take ibuprofen. Take either one at the standard dose listed on the package and stay consistent for the first day or two rather than waiting until the pain becomes intense.
Cool compresses (a damp cloth, not ice) can provide additional relief between doses. Keep the burn moisturized as it heals, since dry, tight skin tends to hurt more.
What Healing Looks Like
Most first-degree burns heal completely in 7 to 14 days. During that time, the redness gradually fades and the skin may feel dry, tight, or itchy. Peeling and flaking are normal and actually a sign that new skin is forming underneath. Don’t pick at peeling skin, as pulling it off before it’s ready can expose raw tissue and slow healing.
If the burn hasn’t improved after two weeks, or if you notice increasing redness, swelling, warmth, or pus at any point, the wound may be infected or deeper than it originally appeared. Burns on the face, hands, feet, groin, or over a joint deserve extra attention because complications in those areas can affect function. A burn that wraps around an entire finger, hand, or limb also warrants a closer look from a professional, since swelling in a circumferential burn can restrict circulation.
Protecting New Skin From the Sun
Once the burn heals, the new skin underneath is significantly more sensitive to UV damage, and that sensitivity can last a year or longer. Sun exposure during this period can cause permanent changes in skin tone at the burn site, either darkening or lightening the area compared to the surrounding skin.
Use a broad-spectrum sunscreen with SPF 30 or higher on the healed area whenever you’re outdoors. Apply it 30 minutes before going outside to give it time to absorb, and reapply every 2 hours or immediately after swimming, sweating, or toweling off. Covering the area with clothing is even more reliable than sunscreen when it’s practical. This level of sun protection should continue for at least a full year after the burn.