Peeling skin from a sunburn is your body shedding cells too damaged to repair. The best thing you can do is moisturize consistently, resist the urge to pull or pick at the skin, and protect the fresh layer underneath. Peeling typically starts a few days after the burn and can last about a week, depending on severity.
Why Sunburned Skin Peels
UV radiation causes deep damage to the DNA inside skin cells. When that damage is too severe to fix, the cells essentially self-destruct through a process called apoptosis, or programmed cell death. This is actually protective: your body eliminates cells with broken DNA before they can multiply into something dangerous, like a skin cancer. The dead cells then separate from the healthy tissue below, and you see it as peeling.
At lower levels of UV exposure, this controlled cell death is the main response. At higher doses, you also get outright cell destruction (necrosis), which is why a more severe burn produces blistering and deeper pain alongside the peeling. The intensity of your peel reflects how much damage your skin absorbed.
Keep the Skin Moisturized
Moisturizing is the single most important step once peeling starts. It won’t stop the peeling entirely, since those damaged cells are already dead, but it softens the peeling layer so it sheds more gently and keeps the new skin beneath from cracking or drying out. Apply moisturizer several times a day, especially after bathing.
Look for products with aloe vera or soy, which soothe irritated skin without trapping heat. Avoid petroleum-based or oil-heavy creams and ointments. These create a seal over the skin that holds warmth in, which can make the burn feel worse and slow cooling. Lightweight, water-based lotions are a better choice during this stage.
What Not to Put on Peeling Skin
Skip any product containing retinol, alpha hydroxy acids (AHAs), or beta hydroxy acids (BHAs) until your skin has fully healed. These are chemical exfoliants designed to accelerate cell turnover, and applying them to already-damaged skin causes stinging, redness, and further irritation. Fragrance-heavy lotions can also be problematic on compromised skin.
Don’t peel, pull, or scrub off the flaking skin. It’s tempting, but tearing the top layer before the new skin underneath is ready leaves you with raw, exposed tissue that’s more vulnerable to infection and scarring. Let the dead skin fall away on its own. If loose edges bother you, you can carefully trim them with clean scissors rather than pulling.
Manage Pain and Itching
As the damaged layer separates and new skin forms, itching can become intense. An over-the-counter oral antihistamine helps take the edge off. Cool (not cold) compresses and continued moisturizing also reduce the itch.
If the area is still painful, an anti-inflammatory pain reliever like ibuprofen helps with both pain and the underlying swelling. Cool baths or showers offer temporary relief, but avoid hot water, which strips moisture and worsens irritation. Pat your skin dry gently rather than rubbing with a towel.
Drink More Water Than Usual
Sunburns draw fluid to the skin’s surface and away from the rest of your body, which can lead to dehydration you might not immediately notice. Drinking extra water and electrolyte-containing beverages during the healing process supports recovery from the inside. If you’re feeling unusually fatigued, lightheaded, or thirsty in the days after a bad burn, dehydration is a likely contributor. This step is easy to overlook but makes a real difference in how quickly you recover.
Protect the New Skin Underneath
The fresh skin revealed by peeling is thinner, more sensitive, and significantly more susceptible to UV damage than your normal skin. It has none of the modest protection that the outer layer provided. Cover healing areas with clothing when possible, and apply a broad-spectrum sunscreen with at least SPF 30 to any exposed areas. Re-burning newly revealed skin is painful and compounds the long-term damage from the original burn.
Signs That Need Medical Attention
Most peeling sunburns heal on their own within a week or so. But some warning signs point to complications that need a doctor’s evaluation:
- Large blisters, or blisters on the face, hands, or genitals
- Signs of infection, such as pus-filled blisters, red streaks spreading from the burn, or increasing pain days after the initial burn
- Systemic symptoms like fever over 103°F (39.4°C), vomiting, confusion, or dizziness
- Severe swelling of the burned area
- Eye pain or vision changes if the burn affected your face
Cold skin, faintness, or confusion after a severe sunburn can signal heat illness or serious dehydration, both of which need prompt medical care. If home treatment isn’t improving things after a few days, or symptoms are getting worse, that’s also worth a call to your provider.