A first-degree burn affects only the outer layer of your skin (the epidermis) and typically heals on its own within 7 to 10 days with simple home care. These are the most common type of burn, caused by brief contact with hot surfaces, steam, or too much sun. The skin looks red or reddish-brown, feels painful to the touch, and stays dry without blisters. If you press on the area, it temporarily turns lighter before the color returns.
Cool the Burn Right Away
The single most important step is running cool (not cold) water over the burn as soon as possible. Hold the affected area under gently flowing tap water for 10 to 20 minutes. This pulls heat out of the tissue, reduces swelling, and limits how deep the damage goes. The sooner you start, the better the outcome.
Don’t use ice or ice-cold water. Extreme cold can constrict blood vessels and actually worsen the injury by reducing blood flow to already-damaged skin. Once you’ve cooled the burn, gently pat the area dry with a clean cloth.
What to Put on the Burn
After cooling and drying, apply a thin layer of pure aloe vera gel or a fragrance-free moisturizing lotion. Aloe vera helps soothe pain and supports skin repair. You can reapply it several times a day as the area feels dry or uncomfortable.
If the pain is significant, a topical product containing a numbing agent like lidocaine can help. These are available over the counter as creams or sprays marketed for sunburn relief. Apply a thin layer to the affected area up to three or four times a day, keeping each application small (no more than about a teaspoon’s worth at a time).
You generally don’t need to bandage a first-degree burn unless it’s in a spot where clothing or friction will irritate it. If you do cover it, use a loose, non-stick bandage and change it daily.
Managing Pain
Over-the-counter pain relievers like ibuprofen or acetaminophen work well for the soreness that comes with a first-degree burn. Ibuprofen has the added benefit of reducing inflammation, which can help with swelling and redness. Take either one at the standard dose on the package, and start as soon as possible after the injury for the best relief. The worst pain usually lasts one to two days, then gradually fades.
What Not to Do
Several popular home remedies can actually make things worse:
- Butter, coconut oil, or cooking oil: These trap heat inside the skin and create a warm, greasy layer that can breed bacteria.
- Toothpaste: Contains chemicals that irritate damaged skin and can also seal in heat.
- Ice or ice water: Risk of frostbite-like damage to tissue that’s already compromised.
- Popping blisters: First-degree burns shouldn’t blister. If you see blisters, you may have a deeper (second-degree) burn, and breaking them open invites infection.
Avoid tight clothing or adhesive bandages directly on the burn. Don’t apply antibiotic ointment unless the skin is broken, as it can trap moisture and slow healing on intact skin.
What Healing Looks Like
Over the first two to three days, the redness and tenderness gradually decrease. Around days four through seven, the outer layer of damaged skin often begins to peel, similar to a peeling sunburn. This is normal. Don’t pick at it. Let the dead skin shed on its own while the fresh layer underneath finishes forming. Most first-degree burns are fully healed within 7 to 10 days without any scarring.
The new skin underneath may look slightly lighter or pinker than the surrounding area for a few weeks. Protect it from sun exposure during this time, as freshly healed skin is more vulnerable to UV damage and can develop lasting discoloration.
Signs the Burn Is More Serious
Sometimes what looks like a mild burn at first turns out to be deeper than expected. Watch for these signs that suggest you’re dealing with a second-degree burn or a developing complication:
- Blisters forming: True first-degree burns don’t blister. If fluid-filled bubbles appear within hours, the burn extends into the second layer of skin.
- Increasing redness or red streaks: Redness that spreads beyond the original burn area, especially with warmth and swelling, can signal infection.
- Pus or cloudy drainage: Any discharge that’s yellow, green, or foul-smelling indicates the wound is infected.
- Fever: A temperature above 100.4°F alongside a burn suggests your body is fighting an infection.
- Pain that worsens after 48 hours: First-degree burn pain should be improving by the second day, not getting worse.
Location also matters. Burns on the face, hands, feet, or over joints deserve professional evaluation even if they appear minor, because swelling in these areas can affect function. The same applies to burns that wrap around a finger, toe, or limb. For children under 10 and adults over 50, skin is thinner and more vulnerable, so err on the side of having a provider take a look if you’re unsure about the severity.