Most minor burns can be fully treated at home with cool water, a simple dressing, and a few days of patience. A first-degree burn (the kind you get from briefly touching a hot pan or catching a splash of boiling water) damages only the outermost layer of skin, turns red, and typically heals within three to five days without scarring. Small second-degree burns, which go one layer deeper and often blister, also qualify as minor if they’re smaller than about three inches across and aren’t on the face, hands, feet, groin, or over a joint.
Cool the Burn Immediately
The single most important thing you can do is run cool (not cold) water over the burn for at least 10 to 20 minutes. This stops heat from traveling deeper into the tissue, reduces swelling, and significantly lowers pain. Tap water at a comfortable cool temperature works perfectly. Start as soon as possible after the injury, ideally within the first few minutes, but cooling still helps even if you’re a bit delayed.
While you’re cooling the burn, remove any rings, bracelets, watches, or tight clothing near the burned area. Burned skin swells quickly, and anything snug can cut off circulation if you wait too long.
What Not to Put on a Burn
Ice, ice water, butter, toothpaste, and egg whites are all common home remedies that make things worse. Ice and ice water constrict blood vessels and can cause frostbite on already-damaged skin, deepening the injury. Butter and grease trap heat in the tissue instead of letting it escape, and they introduce bacteria directly into an open wound. Toothpaste contains chemicals that irritate raw skin and increase the risk of infection. Stick with plain cool water.
Protecting the Wound
Once the burn is cooled, gently pat the area dry and apply a thin layer of petroleum jelly or aloe vera gel to keep the skin moist. Moist wounds heal faster and hurt less than dry ones. Then cover the burn with a non-stick bandage or gauze pad. Plain gauze without a non-stick layer tends to bond to the wound surface and tears healing skin when you change it, so look for dressings specifically labeled “non-adherent” or “non-stick.” Foam dressings and hydrogel sheets are also good options, particularly for burns that are weeping fluid.
Change the dressing once a day, or sooner if it gets wet or dirty. Each time you change it, gently clean the burn with mild soap and water, reapply petroleum jelly or aloe, and cover with a fresh bandage. Keeping the wound clean and covered is the most reliable way to prevent infection.
Managing Pain
Burns hurt most in the first 24 to 48 hours. Over-the-counter pain relievers like ibuprofen, naproxen, or acetaminophen all work well. Ibuprofen and naproxen have the added benefit of reducing inflammation, which can help with swelling around the burn. Take whichever you normally tolerate best, following the dosing instructions on the package.
Cool compresses (a clean, damp cloth) applied for 10 to 15 minutes at a time can also help between doses of pain medication. Avoid pressing hard on the burn.
What to Do About Blisters
Second-degree burns often produce fluid-filled blisters within hours of the injury. Your instinct might be to pop them, but the approach matters. Small, intact blisters act as a natural sterile bandage over the wound, and leaving them alone is generally the safest option at home. If a blister breaks on its own, gently clean the area, apply petroleum jelly, and cover it with a non-stick dressing.
Large blisters that are tense or painful sometimes need to be drained. The British Burn Association recommends against simple needle aspiration, because poking a small hole can introduce bacteria into the enclosed space and lead to infection. In a clinical setting, providers will remove the entire blister roof (a process called deroofing) to fully drain the fluid and clear away dead tissue. If you have a large, painful blister, it’s worth having a provider handle it rather than attempting it yourself.
Tetanus and Burns
Burns are classified as “dirty” wounds for tetanus purposes, even if they look clean. The CDC recommends a tetanus booster after a burn if you haven’t completed your primary vaccine series, if your vaccination history is unknown, or if your last tetanus shot was five or more years ago. If you’ve had a tetanus booster within the last five years and completed the full series, you don’t need another one. Most adults don’t remember exactly when their last shot was, so it’s worth checking with your doctor if you have any doubt.
Signs the Burn Needs Medical Attention
A minor burn that’s healing normally will gradually become less painful and less red over the first few days. Watch for signs that suggest infection or a deeper injury than you initially thought:
- Increasing redness that spreads beyond the edges of the original burn
- Red streaks extending outward from the wound
- Oozing of pus or cloudy, foul-smelling fluid
- Fever
- Pain that gets worse after the first two days instead of improving
Burns that wrap around a finger or limb, cover a joint, or involve the face, hands, feet, or groin should be evaluated by a provider regardless of how minor they look. The same goes for any burn on a young child or an older adult, since skin at the extremes of age is thinner and more vulnerable to deeper damage.
Healing Timeline and Scar Prevention
First-degree burns heal in three to five days. The redness fades, the top layer of skin may peel slightly (similar to a mild sunburn), and no scar forms. Second-degree burns take longer, typically two to three weeks depending on depth. Shallow second-degree burns that stay clean and moist usually heal without significant scarring. Deeper ones can leave discolored or raised scars.
Once the burn has fully closed and new skin has formed, protecting it from the sun is the best thing you can do to minimize long-term discoloration. New skin is extremely sensitive to UV damage and will darken or scar more visibly if exposed to direct sunlight. Cover the area with clothing or apply a broad-spectrum sunscreen with SPF 30 or higher for at least six months to a year after the injury. Keeping the healed skin moisturized also helps it stay supple and reduces the tight, itchy feeling that often accompanies new scar tissue.