A second-degree burn damages the top layer of skin and part of the layer beneath it, causing pain, redness, swelling, and blisters. Most superficial second-degree burns heal within one to three weeks with proper home care, but deeper ones may need medical attention. The steps you take in the first few minutes matter significantly for how well and how quickly the burn heals.
Cool the Burn Immediately
Hold the burned area under cool (not cold) running water for a full 20 minutes. This is the single most important thing you can do. Cooling works best when started as soon as possible, but it still helps if you begin within three hours of the injury. The goal is to stop heat from continuing to damage deeper layers of tissue.
Use cool tap water only. Do not apply ice, ice water, butter, toothpaste, or cooking oil. These trap heat against the skin, cause irritation, and make the injury worse. After cooling, gently pat the area dry with a clean cloth.
How to Handle Blisters
Second-degree burns characteristically form blisters within 24 hours. What you do with them depends on their size and condition. Small, intact blisters under about 2 centimeters (roughly the size of a nickel) can be left alone. They act as a natural protective barrier while the skin underneath heals.
If a blister ruptures on its own, gently remove the loose, dead skin so it doesn’t sit against the wound. Dead blister skin left in place raises the risk of infection and prevents topical treatments from making proper contact with the burn. Use clean scissors if needed, and wash the area gently with mild soap and water before applying a dressing. Avoid deliberately popping intact blisters with a needle, as puncturing them introduces bacteria.
Choosing the Right Dressing
Once the burn is clean and dry, cover it with an appropriate dressing. The type of dressing you use makes a measurable difference in healing speed. Partial-thickness burns heal in an average of 10 days when covered with a moisture-sealing hydrocolloid dressing, compared to about 15 days with traditional silver sulfadiazine (SSD) gauze. SSD gauze also tends to cause more pain during dressing changes.
Better options available at most pharmacies include:
- Hydrocolloid dressings: These seal in moisture, protect the wound, and speed healing. They can stay in place for several days, meaning fewer painful dressing changes.
- Hydrogel dressings: These cool the burn on contact, reduce pain, and keep the wound moist. They’re especially comfortable on tender, weeping burns.
- Non-stick or silicone-coated dressings: These peel off without sticking to the wound bed, which makes changes far less painful.
Whichever dressing you use, change it according to the package instructions or whenever it becomes soaked through, dirty, or loose. Each time you change the dressing, gently clean the wound, check for signs of infection, and reapply a fresh covering. Honey-based wound dressings have also shown strong evidence for improving healing and reducing bacterial growth in partial-thickness burns, and medical-grade honey products are available at many pharmacies.
Managing Pain
Second-degree burns are painful because the nerve endings in the dermis are exposed and irritated. Over-the-counter pain relievers work well for most minor burns. Ibuprofen (Advil, Motrin) or naproxen (Aleve) are good first choices because they reduce both pain and inflammation. Acetaminophen (Tylenol) helps with pain but won’t address swelling. You can follow the dosing directions on the bottle and take them on a schedule for the first few days rather than waiting until the pain becomes severe. Do not give aspirin to anyone under 18.
Keeping the burn elevated above heart level when possible also helps reduce throbbing and swelling, especially in the first 48 hours.
Recognizing Signs of Infection
Burn wounds are vulnerable to infection because the skin’s protective barrier is broken. Watch for these warning signs during the healing process:
- Increasing redness spreading beyond the burn edges, especially if the surrounding skin becomes warm, swollen, and tender (a sign of cellulitis)
- A partial-thickness burn that seems to be getting deeper rather than improving, with the wound bed turning white or gray
- Pus or foul-smelling discharge from the wound
- Fever, rapid heartbeat, or feeling generally unwell
Some redness around the edges of a healing burn is normal. Redness alone doesn’t always mean infection. But redness that spreads outward day over day, paired with increasing pain or warmth, needs medical evaluation.
When a Burn Needs Professional Care
Not all second-degree burns are safe to treat at home. Seek medical care for burns that involve the face, hands, feet, genitals, or any major joint (elbows, knees, shoulders). These locations carry higher risks of scarring, functional problems, and complications.
Size also matters. Burn centers recommend referral for second- and third-degree burns covering more than 20% of total body surface area in adults, or more than 10% in children under 10 and adults over 50. As a rough guide, the palm of your hand (including fingers) represents about 1% of your body surface area, so you can estimate the burn’s size relative to your palm.
Deep second-degree burns also look different from superficial ones. A superficial partial-thickness burn is bright red, wet, very painful, and blanches (turns white briefly) when you press on it. A deeper burn may appear mottled, pale, or waxy and may be less painful because the nerve endings are more damaged. Deep partial-thickness burns often need surgical intervention and take much longer to heal.
What Healing Looks Like
Superficial second-degree burns typically heal in 7 to 21 days. During the first few days, the burn will weep fluid and may ooze or bleed slightly if stretched. Over the following week, new skin gradually forms underneath the damaged layer. You’ll know the wound has healed when the surface feels dry, the drainage stops, and new pink skin is visible.
Scarring from superficial second-degree burns is uncommon, but pigment changes are normal. The healed skin may look darker or lighter than the surrounding area for months. To minimize permanent color changes, protect the healed burn from direct sunlight for at least one full year. Use a broad-spectrum sunscreen with SPF 30 or higher that blocks both UV-A and UV-B rays, and reapply it according to the product directions. Covering the area with clothing is even more reliable than sunscreen alone.
Burns that haven’t shown significant healing progress by the three-week mark may be deeper than initially thought and could benefit from medical reassessment. Some deep second-degree burns ultimately require skin grafting to close properly.