Cool the skin, hydrate, and protect the damaged area while it heals. Most sunburns resolve on their own within a week, but the right care in the first 24 hours can significantly reduce pain and speed recovery. Here’s what actually helps, what to skip, and when a sunburn needs medical attention.
Cool the Skin Right Away
The single most effective first step is running cool water over the burned area for 10 to 20 minutes. This draws heat out of the deeper layers of skin where damage is still progressing. A cool, wet cloth works if you can’t get to a shower or faucet, but running water is better because it continuously pulls heat away rather than warming up against your skin.
Don’t use ice, ice packs, or ice water. Cold that intense constricts blood vessels and can actually worsen the injury. Stick with cool tap water. And avoid cooling for longer than 40 minutes total, since prolonged cold exposure can drop your body temperature, especially in children.
Take an Anti-Inflammatory Early
Ibuprofen or naproxen does double duty on a sunburn: it reduces pain and tamps down the inflammatory response that’s making your skin swell, redden, and throb. The key is timing. Taking it as soon as you notice the burn is more effective than waiting until the pain peaks, because inflammation builds over the first 24 hours. By the time your skin is at its worst, the inflammatory cascade is already well underway.
Sunburn pain typically starts 3 to 5 hours after exposure, peaks around 24 hours, and fades after about 48 hours. Taking an anti-inflammatory during that early window helps blunt the peak.
Moisturize With the Right Products
Once you’ve cooled the burn, apply a light lotion or gel containing aloe vera or soy. Both have antioxidant properties that support the healing process. You want something lightweight, not thick or greasy. Petroleum jelly, butter, and heavy creams trap heat in the skin and slow recovery. Apply moisturizer while your skin is still slightly damp to help lock in hydration.
Reapply several times a day, especially after bathing. Sunburned skin loses moisture rapidly, and keeping the barrier hydrated reduces tightness, itching, and the severity of peeling later on.
Products to Avoid
Skip any spray or cream containing benzocaine or lidocaine. These topical numbing agents can irritate burned skin, and benzocaine in particular gets absorbed more readily through damaged skin, increasing the risk of side effects. Anything labeled “caine” on the ingredient list is best left on the shelf. Alcohol-based aftershaves or astringents will dry out the skin further and sting.
Drink More Water Than Usual
A sunburn draws fluid toward the skin’s surface and away from the rest of your body. Even a moderate burn covering your shoulders and back can leave you mildly dehydrated. You won’t need IV fluids for a typical sunburn, but you should drink more water than normal for the first two to three days. If your urine is dark yellow, you’re behind.
Alcohol makes dehydration worse, so it’s worth cutting back while you’re recovering, especially if you got burned during a day at the beach where you were already sweating and possibly drinking.
Leave Blisters Alone
Blisters mean the burn reached deeper into the skin. An intact blister is your body’s own sterile bandage, cushioning the raw skin underneath while new cells grow. Don’t pop them, peel them, or pick at them.
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, apply an antibiotic ointment, and cover it with a nonstick bandage. Watch for signs of infection: increasing swelling, pus, red streaks spreading outward from the blister, or warmth that gets worse instead of better.
Blisters on the face, hands, or genitals warrant a trip to your doctor regardless of whether they break.
What to Expect as It Heals
Sunburns follow a predictable pattern. Redness shows up 3 to 5 hours after exposure, hits its worst point around 24 hours, and generally fades within 3 to 7 days depending on severity. Pain follows the same curve but usually drops off faster, subsiding noticeably after 48 hours.
Peeling starts a few days after the burn and can continue for up to 10 days. This is your body shedding the damaged outer layer of skin. Resist the urge to pull or scrub peeling skin off. Let it come away naturally, keep moisturizing, and wear soft, loose clothing over the area. Tight fabrics create friction that makes peeling skin more irritated and increases the chance of tearing healthy skin underneath.
The new skin revealed after peeling is more sensitive to UV damage than normal. Protect it with clothing or sunscreen for several weeks, even on cloudy days.
When a Sunburn Needs Medical Attention
Most sunburns are painful but manageable at home. A small percentage cross into territory that doctors call “sun poisoning,” where the UV damage triggers a systemic response. Seek medical care if your sunburn comes with any of the following:
- Fever or chills: feeling extremely cold or shivering despite warm surroundings
- Nausea or vomiting
- Severe headache
- Bright red, oozing skin
- Large blisters or blisters covering a wide area
- Severe pain that doesn’t respond to over-the-counter medication
These symptoms suggest the burn is extensive enough to be causing inflammation throughout the body, not just at the skin’s surface. Children, older adults, and people with fair skin are more susceptible. If you’re unsure whether your symptoms are serious, err on the side of getting evaluated, particularly if a child is involved or if the burn covers a large portion of the body.