Most minor burns heal within one to three weeks with proper care, and the steps you take in the first few minutes matter as much as what you do over the following days. The key is cooling the burn quickly, keeping it clean and moist, and watching for signs that it needs medical attention.
Cool the Burn Immediately
Run cool water over the burn for at least 20 minutes. The ideal temperature is around 15°C (59°F), which feels cool but not cold. This stops heat from penetrating deeper into your skin and reduces pain and swelling. Start as soon as possible after the injury.
Do not use ice or ice water. Ice constricts blood vessels and can cause further tissue damage, and on a large burn it raises the risk of hypothermia. Butter, toothpaste, and cooking oil are also harmful. These trap heat against the skin, cause irritation, and make the injury worse.
Identify How Deep Your Burn Is
How you treat a burn depends on its depth, and knowing what you’re dealing with helps you decide whether home care is enough.
- First-degree (superficial): Only the outermost layer of skin is affected. The burn looks pink to red, feels moderately painful, and has no blisters. Sunburns are a common example. These heal on their own in about a week.
- Superficial second-degree (partial-thickness): The burn reaches into the upper layer of deeper skin. Blisters are common, the wound bed underneath is uniformly pink or red, and these burns are painful. Healing typically takes two to three weeks.
- Deep second-degree: The burn extends further into the skin. Blisters may form, but the wound bed underneath looks mottled rather than evenly pink. Pain is surprisingly minimal because some nerve endings are damaged. These burns often need professional wound care.
- Third-degree (full-thickness): All skin layers are destroyed, extending into the fat beneath. The skin looks leathery, stiff, and dry. There is no pain at the burn site because the nerves are destroyed. These burns always require medical treatment.
First-degree burns and small superficial second-degree burns (smaller than about 3 inches across and not on the face, hands, feet, groin, or over a joint) are generally safe to treat at home. Anything deeper or larger needs professional care.
Leave Blisters Intact
If your burn blisters, resist the urge to pop or peel them. An intact blister acts as a natural sterile bandage. Research comparing outcomes found that burns with blisters left intact had an infection rate of just 15% at 10 days, compared to 73% for blisters that were drained and 78% for those left exposed after removal.
If a blister breaks on its own, gently clean the area with mild soap and water, pat it dry, and apply a thin layer of antibiotic ointment before covering it with a non-stick bandage.
Keep the Wound Moist and Covered
Letting a burn dry out slows healing and increases scarring. After cooling, apply a thin layer of petroleum jelly or antibiotic ointment and cover the area with a non-stick gauze pad. Change the dressing once or twice daily, or whenever it gets wet or dirty. Each time you change the dressing, gently wash the burn with mild soap and water, pat dry, and reapply ointment before putting on fresh gauze.
For partial-thickness burns treated by a doctor, silver-containing hydrofiber dressings have largely replaced older silver sulfadiazine cream. These newer dressings promote faster healing, reduce inflammation, and require fewer dressing changes. Your provider will choose the right option based on your burn’s size and depth.
Managing Pain and Itch
Over-the-counter pain relievers like ibuprofen, acetaminophen, or naproxen all work well for burn pain. Ibuprofen and naproxen also reduce inflammation, which can help with swelling. Follow the dosing instructions on the label and avoid combining two pain medications unless your doctor specifically told you to. Skip aspirin, as it can worsen bleeding in the burned area.
As a burn heals, itching can become intense. An over-the-counter antihistamine can take the edge off. Keeping the wound moisturized also helps, since dry healing skin itches more.
Watch for Signs of Infection
Infection is the biggest risk with any open burn. Check the wound daily when you change the dressing and look for these warning signs:
- Spreading redness: Some redness around a burn is normal, but if it extends noticeably into the surrounding uninjured skin and keeps growing, that suggests cellulitis.
- Pus or cloudy drainage: Clear or slightly yellowish fluid is normal in the first few days. Thick, discolored, or foul-smelling discharge is not.
- Increased pain: Pain that gets worse after the first day or two instead of gradually improving can signal infection.
- Fever: A temperature above 38.4°C (about 101°F), especially combined with rapid breathing, confusion, or feeling generally unwell, points to a systemic infection that needs urgent care.
Tetanus and Burns
Burns are classified as “dirty” wounds for tetanus purposes because they contain damaged tissue. If you haven’t had a tetanus booster in the last five years, or if you’re unsure of your vaccination history, you should get one. People who have never completed their primary tetanus vaccination series may also need a tetanus immune globulin injection for additional protection.
Eat to Support Healing
Your body needs extra fuel to rebuild damaged skin. Protein is the most important nutrient for wound repair. Aim for protein-rich foods at every meal: eggs, chicken, fish, beans, Greek yogurt, or cottage cheese. For significant burns, clinical guidelines recommend roughly 1.5 to 2 grams of protein per kilogram of body weight daily, which is about double the normal recommendation.
Vitamin C and zinc also play key roles. One clinical trial found that burn patients supplemented with vitamin C, vitamin E, and zinc healed in an average of 5 days compared to 8 days without supplementation. You don’t need megadoses for a minor burn. Eating citrus fruits, bell peppers, and leafy greens covers vitamin C, while nuts, seeds, meat, and legumes supply zinc.
Minimizing Scars
Once a burn has fully closed (no open areas or scabbing), you can start scar prevention. Silicone is the best-studied option. Silicone gel sheets should be worn over the healed burn for at least 12 hours a day, continuing for about three months. Wearing them 24 hours a day tends to cause skin breakdown and is poorly tolerated. Silicone gel creams are an easier alternative, applied twice daily, and work well on areas where sheets are hard to keep in place, like fingers or the neck.
Protect the healed area from sun exposure for at least a year. New skin is highly susceptible to UV damage and will darken permanently if unprotected. Use a broad-spectrum sunscreen with SPF 30 or higher, or keep the area covered with clothing. Gentle massage of the scar, starting a few weeks after the wound fully closes, can help soften and flatten the tissue over time.