The fastest way to help a sunburn is to cool the skin, reduce inflammation from the inside, and keep the damaged area hydrated. Most mild sunburns improve noticeably within 48 to 72 hours if you act quickly, but the first few hours matter most for limiting how bad the burn gets.
Get Out of the Sun and Cool Down
This sounds obvious, but plenty of people notice redness and stay outside thinking the damage is already done. It’s not. UV exposure continues deepening the burn as long as you’re in the sun, and the full extent of redness often doesn’t show up for four to six hours. Get indoors as soon as you notice any tenderness or color change.
Once inside, start cooling the skin immediately. A cool (not cold) shower or bath is the most effective first step. Aim for about 10 minutes, and repeat several times throughout the day. Between showers, place a clean towel dampened with cool tap water on the burned areas. Adding about 2 ounces of baking soda to a bath can also help soothe irritation. Ice packs or ice directly on the skin feel tempting but can cause further damage to already-compromised tissue. Stick with cool water.
Take a Pain Reliever Right Away
Sunburn pain comes from inflammation, not just surface heat. Taking an over-the-counter anti-inflammatory like ibuprofen as soon as possible after sun exposure helps reduce the swelling, redness, and pain that are still building in your skin. The inflammatory response ramps up over several hours, so earlier is genuinely better here. Acetaminophen works for pain but doesn’t target the inflammation itself the way ibuprofen does.
Don’t wait until the pain peaks to take something. By then, the inflammatory cascade is well underway and harder to dial back.
What to Put on Your Skin
Once you’ve cooled the burn, your next priority is keeping the skin moisturized without trapping heat.
Aloe vera gel is the most widely recommended topical treatment, and there’s real science behind it. Compounds in aloe stimulate the growth of new skin cells, support collagen production, and improve blood flow to the damaged area, which helps deliver oxygen for healing. It also has mild antimicrobial properties that protect compromised skin from infection. For the best results, use pure aloe vera gel (the higher the aloe concentration, the better) and store it in the refrigerator so it doubles as a cooling agent.
Calamine lotion is another solid option, especially if itching is a major issue. Colloidal oatmeal baths can also reduce discomfort. Both are gentle on burned skin.
What Not to Put on a Sunburn
Petroleum jelly, coconut oil, butter, and other oil-based products are common home remedies that actually make things worse. They block pores and trap heat and sweat against the skin, which can slow healing and lead to infection.
Avoid any product containing benzocaine or lidocaine. These topical numbing agents seem like they’d help, but they can trigger allergic reactions in some people and irritate already-damaged skin, making the burn worse. Check the ingredient list on any “sunburn relief” spray before using it, as many contain these anesthetics.
Hydrate More Than You Think You Need To
Sunburn draws fluid to the skin’s surface and away from the rest of your body. You may not feel thirsty, but dehydration is already happening. Drink extra water for at least the first full day after a burn, and continue for as long as the skin feels warm or tight. If your lips are dry or your urine is dark, you’re behind on fluids.
Protect Healing Skin
Burned skin is extremely vulnerable to further UV damage. Wear loose, soft clothing over the affected areas, and stay out of direct sun entirely until the redness has fully resolved. Tight fabrics create friction that intensifies pain and can tear fragile skin.
When peeling starts, typically after several days, resist the urge to pull it off. Peeling is your body shedding the damaged outer layer, and forcing it exposes raw skin underneath before it’s ready. Let it happen naturally, and keep applying moisturizer to manage the flaking.
When a Sunburn Needs Medical Attention
Most sunburns are painful but manageable at home. Some cross the line into what’s sometimes called “sun poisoning,” which is essentially a severe burn that triggers a full-body response. Watch for blisters covering a large area, fever and chills, nausea or vomiting, dizziness, rapid heartbeat, or confusion. These symptoms mean the burn is affecting more than just your skin.
If you’re still experiencing extreme pain and widespread blistering after a few days of home treatment, or if you develop any signs of heatstroke like confusion or severe dehydration, that warrants a trip to the emergency room. For blistered skin specifically, don’t pop the blisters. They’re a natural protective barrier over the raw skin beneath.
A Realistic Recovery Timeline
Mild sunburns (pink, tender, no blisters) typically peak in redness and pain within 24 hours and feel significantly better by day three. Moderate burns with deeper redness take closer to a week. Severe burns with blistering can take two weeks or longer to fully heal, and the peeling phase alone may last several days.
Throughout the entire healing process, the most helpful things you can do are also the simplest: keep the skin cool, keep it moisturized, keep yourself hydrated, and stay out of the sun. There’s no shortcut that heals a burn instantly, but these steps meaningfully reduce how long and how badly it hurts.