The fastest way to treat a sunburn is to get indoors, cool the skin, take an anti-inflammatory pain reliever, and start moisturizing before the burn fully develops. You can’t undo the UV damage, but acting within the first few hours significantly reduces how painful and prolonged the burn becomes. Pain typically peaks around 24 hours after exposure, so everything you do before that window matters.
Cool Your Skin Down Immediately
As soon as you notice redness or feel that familiar heat radiating off your skin, get out of the sun and preferably indoors. Then start cooling the affected areas. Take a cool (not cold) bath or shower, or press a clean towel dampened with cool tap water against the burn. You can repeat this several times throughout the day. Adding about two ounces of baking soda to a bath can help soothe irritation further.
When you get out of the bath or shower, pat yourself dry gently rather than rubbing. Rubbing irritates the already-damaged skin and strips away moisture you need to retain. While your skin is still slightly damp, apply a moisturizer containing aloe vera or soy. Both ingredients help calm inflammation and lock in hydration at a time when your skin barrier is compromised.
Take a Pain Reliever Early
Ibuprofen is the go-to choice for sunburn because it blocks the inflammatory compounds your body produces in response to UV damage. Taking it early, ideally within the first couple of hours, helps blunt the pain and swelling before they peak. It won’t shorten how long the sunburn lasts, but it makes the worst of it more manageable. If you can’t take ibuprofen, acetaminophen will help with pain, though it doesn’t have the same anti-inflammatory effect.
Choose the Right Topical Treatments
For mild to moderate burns, a 1% hydrocortisone cream applied three times a day for up to three days can reduce redness and discomfort. Try refrigerating the cream or your aloe vera gel before applying it. The cooling sensation provides immediate relief, and cold temperatures help constrict blood vessels near the skin’s surface, temporarily reducing swelling.
Avoid products containing benzocaine or lidocaine. These numbing agents can irritate burned skin or cause allergic reactions, making the situation worse. Stick with simple, fragrance-free moisturizers, aloe-based gels, or soy-based lotions. Petroleum-based products can trap heat in the skin, so save those for later in the healing process when the initial inflammation has settled.
The Milk Compress Option
A cool milk compress is a surprisingly effective home remedy. The proteins in milk, particularly casein, form a protective film over damaged skin that helps retain moisture. Whey proteins contain bioactive peptides that reduce redness and pain. Soak a clean cloth in cool whole milk, apply it to the burn for 15 to 20 minutes, and rinse gently afterward. It’s not a substitute for proper moisturizing, but it can provide noticeable relief when you’re in the thick of the discomfort.
Drink More Water Than You Think You Need
A sunburn draws fluid toward the skin’s surface as part of the inflammatory response, and severely burned skin loses moisture directly through the damaged barrier. This is called transepidermal fluid loss, and it can leave you dehydrated without you realizing it. Drink extra water for the first few days after a burn, especially if the affected area is large. If you feel thirsty, you’re already behind.
What to Expect as Your Skin Heals
Pain and redness start within a few hours of the burn and intensify steadily, peaking at about 24 hours. Over the following two to three days, the acute pain fades, though the skin may still feel tight and warm to the touch. Several days after the burn, peeling begins. This is your body shedding the damaged outer layer of skin, and it’s a normal part of healing. Over the next week or so, your skin should gradually return to its normal shade.
Don’t peel or pick at flaking skin. Let it come off naturally. Pulling strips of peeling skin can tear into healthy tissue underneath, increasing your risk of scarring or infection. Keep the area moisturized throughout the peeling phase to minimize flaking and itching.
How to Handle Blisters
Blisters mean you have a second-degree burn. Leave them intact. The fluid inside protects the raw skin beneath and helps it heal. If a blister breaks on its own, gently trim away the dead skin with clean, small scissors. Wash the area with mild soap and water, apply antibiotic ointment, and cover it with a nonstick bandage. Keep it clean and check daily for signs of infection: increasing redness spreading beyond the burn, warmth, pus, or worsening pain after the first day or two.
Signs That Need Medical Attention
Most sunburns are painful but manageable at home. However, a severe burn combined with prolonged sun and heat exposure can trigger systemic problems. If you or someone with you develops confusion, slurred speech, a very high body temperature, or loses consciousness, that’s a medical emergency. Call 911. These are signs of heat stroke, where core body temperature can spike to 106°F or higher within 10 to 15 minutes.
Less dramatic but still concerning symptoms include heavy nausea, dizziness, weakness, headache, and significantly decreased urination. These point to heat exhaustion or dehydration and warrant a trip to urgent care or an emergency room, especially in children or older adults. Blisters covering a large portion of the body, a fever above 101°F from the sunburn itself, or signs of skin infection also call for professional evaluation.
Protecting Your Skin While It Recovers
Sunburned skin is extremely vulnerable to further UV damage. Stay out of direct sunlight as much as possible while your burn heals. If you have to be outside, cover the affected areas with loose, tightly woven clothing rather than relying on sunscreen alone. Sunscreen applied over a fresh burn can sting and may not adhere well to compromised skin. Once the peeling phase is complete and fresh skin is exposed, that new skin is thinner and more sensitive than usual, so be especially diligent about sun protection for the following weeks.