Run cool (not cold) water over the burn for 20 minutes. That single step, done within the first three hours of the injury, is the most effective thing you can do at home to reduce tissue damage and improve healing. Most hot water burns affect only the outer layers of skin and heal fully with proper home care, but knowing which burns you can treat yourself and which need medical attention matters.
Cool the Burn Immediately
As soon as the hot water hits your skin, get to a faucet and let cool running water flow over the burned area. Keep it there for a full 20 minutes. This feels like a long time, and most people stop too early. Research from UC Davis Health shows that the full 20 minutes of cooling, started within three hours of the injury, significantly improves outcomes. The water should be cool, not ice cold. Cold water or ice can constrict blood vessels and actually worsen the tissue damage.
While you’re cooling the burn, gently remove any clothing or jewelry near the area before swelling starts. If fabric is stuck to the skin, leave it and let medical professionals handle it.
What Not to Put on a Burn
Skip the butter, toothpaste, cooking oil, and any other home remedy you’ve heard about. These trap heat against the skin, cause irritation, and make the injury worse. Ice and ice water are also harmful. Stick with cool running water for cooling and simple, clean supplies for dressing.
Assess the Severity
Once you’ve cooled the burn, take a look at what you’re dealing with. The depth of the burn determines whether home care is enough.
Superficial burns (first degree) affect only the outermost layer of skin. The area will be red and painful, and it blanches white when you press on it. Think of a mild sunburn. These heal within a few days without scarring.
Superficial partial-thickness burns (second degree) go deeper, damaging the layer beneath the surface. These are intensely painful, red, and weepy. Blisters typically form within 24 hours. They can take up to three weeks to heal.
Full-thickness burns (third degree) destroy all layers of skin and sometimes the tissue beneath. The skin may look white, brown, or leathery, and the area may actually feel less painful because nerve endings are destroyed. These always require professional medical care.
You can treat superficial and small superficial partial-thickness burns at home. Head to an emergency department if the burn covers a large area (anything bigger than the palm of your hand is a reasonable guide), if it’s on the face, hands, feet, genitals, or over a joint, or if the skin looks white, brown, or charred.
How to Dress the Burn
After cooling, gently pat the area dry with a clean cloth. Apply a thin layer of petroleum jelly (plain Vaseline works well) to keep the wound moist, which supports healing and reduces pain. Then cover it with a sterile, non-stick gauze bandage. Avoid airtight or plastic-covered bandages, which can trap moisture and heat against the wound. Change the dressing once a day, or whenever it gets wet or dirty, reapplying petroleum jelly each time.
Managing Blisters
If blisters form, your instinct will be to pop them. Resist it, with some exceptions. Small, intact blisters (under about 6 millimeters, roughly the size of a pencil eraser) serve as a natural protective barrier and help control pain. Leave them alone.
Large, thin-walled blisters that are bigger than 6 millimeters are more likely to rupture on their own, which raises infection risk. The British Burn Association recommends these be carefully deroofed (the dead skin removed), but this is best done by a healthcare provider with sterile instruments. If a blister breaks on its own, gently clean the area with mild soap and water, trim away the loose dead skin with clean scissors if possible, apply petroleum jelly, and cover with a fresh non-stick bandage.
Blisters on fingertips, palms, and the soles of your feet tend to cause significant discomfort and limit movement. These are also worth having a professional look at.
Pain Relief
Burns hurt, especially partial-thickness ones that leave raw nerve endings exposed. Over-the-counter pain relievers help considerably. Ibuprofen works well because it tackles both pain and inflammation. Acetaminophen is a good alternative if you can’t take ibuprofen. Follow the dosing instructions on the package and don’t exceed the daily maximum listed on the label. Keeping the wound covered and moist also reduces pain between dressing changes, since air hitting exposed nerve endings is a major source of discomfort.
Signs of Infection
Most home-treated burns heal without complications, but watch for infection in the days that follow. Warning signs include increasing redness or discoloration spreading outward from the wound, growing soreness or warmth around the area, and any thick or milky drainage. Pus can be white, yellow, green, pink, or brown, and it usually smells bad. If the drainage changes color, gets thicker, or develops a foul odor, the infection is getting worse. Fever is another red flag. If you notice any of these, it’s time for medical evaluation.
What Healing Looks Like
A superficial burn will feel better within a couple of days. The redness fades, the skin may peel lightly (like a sunburn), and no scar forms. Partial-thickness burns follow a slower path. For the first several days, the area stays red and tender. Over one to three weeks, new skin gradually grows inward from the edges and up from the deeper layers. During this time, keep the wound clean, moist, and covered. Once healed, the new skin will be pink and more sensitive than normal for several weeks. Protecting it from sun exposure helps prevent permanent discoloration.
If a partial-thickness burn hasn’t shown clear signs of healing after two weeks, or if the wound seems to be getting deeper rather than improving, have it evaluated. Burns that initially seem superficial can sometimes turn out to be deeper than they appeared at first.