The fastest way to relieve sunburn pain is to cool the skin, take an anti-inflammatory painkiller, and keep the damaged skin moisturized while it heals. Most mild to moderate sunburns resolve within a week, but the first 24 to 48 hours tend to be the worst. What you do in those early hours makes a real difference in how much discomfort you feel.
Cool the Skin First
Your top priority is pulling heat out of the burned skin. A clean towel dampened with cool tap water, held against the burn for about 10 minutes, is one of the simplest and most effective options. You can repeat this several times a day. A cool bath or shower works too, just keep the water gentle and avoid scrubbing. The goal is cool, not cold. Ice packs or ice water can shock already-damaged skin and cause more irritation.
Burned tissue keeps conducting heat from deeper layers to the surface for hours after the initial exposure. Cooling interrupts that process and helps limit how far the damage spreads. If you can start cooling within the first couple of hours, you’ll likely reduce both the peak pain and the amount of peeling that follows.
Take a Painkiller Early
Over-the-counter anti-inflammatory painkillers like ibuprofen or naproxen do more than dull the pain. They block the inflammatory chemicals your body produces in response to UV damage, which is a major part of why sunburn hurts. The key is timing: these medications work best when taken early, ideally as soon as you notice the burn developing. Waiting until the pain peaks means the inflammation has already built up and is harder to tamp down.
Follow the dosing instructions on the package and continue for the first day or two while pain and redness are at their worst.
Moisturize With the Right Products
Once you’ve cooled the skin, apply a moisturizer to help trap water in the damaged outer layer. Aloe vera gel is a classic choice for good reason. It contains polysaccharides, enzymes, and vitamins that reduce inflammation and support skin repair. Look for pure aloe vera gel without added fragrances or alcohol, which can sting and dry out burned skin further. Keeping the gel in the refrigerator adds an extra cooling effect.
Lightweight, water-based lotions with ingredients like soy or oat extract also soothe burned skin. The important thing is that the product absorbs easily and doesn’t sit as a heavy layer on the surface.
What Not to Put on a Sunburn
Petroleum jelly and thick oil-based ointments feel protective, but they can actually make things worse in the first hours after a burn. A heavy petroleum film lowers evaporative cooling and traps heat against the skin surface. Studies have found higher skin surface temperatures during the first two to four hours when burned skin was sealed with petroleum compared to skin left uncovered. That extra heat can extend the zone of tissue injury and prolong pain. Some burn centers have moved away from recommending heavy occlusion for this reason. Save petroleum-based products for later in the healing process, once the skin has fully cooled and started to peel.
Topical numbing sprays and creams containing benzocaine are another product to be cautious with. The Mayo Clinic advises against applying benzocaine to burns or inflamed skin. It absorbs more readily through damaged skin than through intact skin, increasing the risk of side effects like blistering, stinging, swelling, and allergic reactions. If you need topical relief, stick with aloe or a cooling moisturizer instead.
Stay Hydrated From the Inside
Sunburn draws fluid toward the skin’s surface, which can leave the rest of your body mildly dehydrated, especially if the burn covers a large area. You may not feel noticeably thirstier, but your body is using extra water for the inflammatory and repair process. Increase your fluid intake for a few days after a significant burn. Watch for signs of dehydration like fatigue, reduced urination, dry mouth, or dizziness, all of which signal you need to drink more.
How to Handle Blisters
Blisters mean you have a second-degree burn, where the damage has reached below the outermost layer of skin. The fluid inside a blister is part of your body’s healing system, acting as a sterile cushion over the new skin forming underneath. Leave intact blisters alone. Popping them removes that protective barrier and opens the door to infection.
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 a thin layer of antibiotic ointment, and cover it with a nonstick bandage. Change the bandage daily and watch for signs of infection: increasing redness, warmth spreading beyond the burn margins, or pus seeping from the wound.
Signs You Need Medical Attention
Most sunburns heal on their own, but some are severe enough to require medical treatment. Seek care right away if you experience any of the following:
- Widespread blistering covering more than 20% of your body, roughly the equivalent of your entire back or a whole leg
- Fever above 102°F (39°C) or chills
- Extreme pain that isn’t responding to cool compresses and over-the-counter painkillers
- Signs of dehydration like dizziness, dry mouth, or very little urine output
- Signs of infection including pus from blisters or worsening redness
- Sunburn on a baby under one year old, which always warrants immediate evaluation
What to Expect as Your Skin Heals
Sunburn pain typically peaks between 6 and 48 hours after exposure, then gradually fades over the next few days. Peeling usually starts around day three to five as your body sheds the damaged cells. Resist the urge to pull or pick at peeling skin, since the new layer underneath is thin and sensitive. Keep applying moisturizer, wear loose soft clothing over the burned area, and stay out of direct sun until the skin has fully healed. A second burn on top of a healing one is significantly more painful and increases the risk of lasting damage.