After Sun for Sunburn: How to Soothe, Repair and Stop Peeling

Sunburn is the skin’s inflammatory response to UV damage, and the steps taken in the first 24 hours make a meaningful difference to how quickly and comfortably it heals. Here is a practical guide to cooling, hydrating, repairing, and managing peeling from the moment you notice the burn.

Sunburn is not just surface redness. It is the visible result of UV radiation damaging the DNA of skin cells, triggering an immune response that causes inflammation, heat, and pain.

UVB rays are the primary cause of sunburn, penetrating the outer layers of skin and initiating that response at a cellular level.

Understanding how UVA and UVB rays affect the skin differently helps explain why protection matters even when you do not burn easily.

The peeling that follows is the body shedding damaged cells as part of the repair process. It cannot be stopped entirely but it can be managed.

And sunburned skin loses moisture at a significantly faster rate than healthy skin, which is why consistent hydration from both the inside and outside is the most important part of recovery.

Source: European Journal of Immunology, 2024

Knowing what is coming makes the process considerably less stressful.

Hours 1 to 6: Redness and heat develop and intensify as the inflammatory response builds. The full extent of the burn often is not visible until several hours after exposure, which is why sunburn can feel worse the morning after a day in the sun.

Hours 12 to 24: Redness and discomfort typically peak during this window. The skin may feel tight, hot, and tender to the touch. This is when consistent cooling, hydration, and aftersun application matters most.

Days 2 to 3: Redness begins to subside. The skin may start to feel dry and itchy as the outer layers begin to tighten and contract.

Days 3 to 5: Peeling typically begins. This is the body shedding damaged skin cells and is a normal part of the healing process.

Days 7 to 10: Most mild sunburns resolve within this window. The new skin underneath will be more sensitive to UV exposure than normal skin for several weeks after, making it particularly important to stay out of direct sun during peak UV hours.

The first 24 hours set the tone for how the skin heals. These are the steps that matter most.

Take a cool shower or bath, or apply a cool damp cloth to the affected areas for 10 to 15 minutes at a time. Repeat throughout the day to reduce heat and inflammation. Do not use ice or ice packs directly on sunburned skin. Extreme cold on already compromised skin can cause additional damage rather than relief.

Sunburn draws fluid toward the skin’s surface and away from the rest of the body. Drink more water than usual throughout the day to compensate for that increased fluid loss and support the skin’s repair process from the inside.

After cooling the skin, apply a generous layer of aftersun lotion to all affected areas while the skin is still slightly damp. Applying to damp skin helps lock in moisture before it evaporates.

Cover all sun-exposed skin, not just the areas that look red, as UV stress affects the skin more broadly than redness alone suggests.

The key ingredients to look for in an aftersun for sunburn are Aloe Vera, for its well-documented anti-inflammatory and soothing properties, and Hyaluronic Acid, to restore the moisture the skin is losing at an accelerated rate.

For a full breakdown of what aftersun is and how its key ingredients work, that guide covers everything you need to know.

A single application is not enough. Sunburned skin loses moisture far faster than healthy skin, which means the aftersun needs to be reapplied consistently throughout the day. Reapply every two to four hours, or whenever the skin feels hot, tight, or dry again.

The more consistently the skin is kept hydrated throughout the inflammatory phase, the more comfortable the recovery and the less severe the peeling tends to be.

Do not apply petroleum jelly or heavy oil-based products in the first 24 to 48 hours. These can trap heat in the skin and slow the natural cooling process. Avoid anything containing alcohol or heavy fragrances, which can sting and further dry out already compromised skin.

Over-the-counter pain relief such as ibuprofen can help reduce inflammation and discomfort in the first 24 to 48 hours.

Follow the instructions on the packaging and consult a pharmacist if you are unsure which option is right for you. Do not apply topical pain relief products containing benzocaine to sunburned skin as these can cause further irritation.

Source: Mayo Clinic, 2024

Sunburned facial skin needs gentle handling. Avoid touching, rubbing, or applying makeup over the affected area as this can trap heat and irritate already compromised skin.

Apply a lightweight, fragrance-free aftersun or moisturizer gently to damp skin after cooling, and reapply whenever the skin feels tight or dry.

If the skin around the eyes is puffy or sensitive, a cool damp cloth held gently against closed eyes can help ease discomfort. Avoid any active skincare ingredients including retinoids and acids until the skin has fully healed.

Peeling cannot be stopped entirely. It is the body’s process of shedding damaged skin cells and a sign that repair is underway. What can be managed is how severe it is and how comfortable the process feels.

Consistent hydration is the single most effective way to reduce the severity of peeling. Skin that is well moisturized throughout the inflammatory phase tends to peel less and more evenly than skin that has been left to dry out.

Never pick, peel, or scratch at loose skin. This exposes raw skin beneath and significantly increases the risk of infection and scarring.

Never exfoliate sunburned skin. Scrubs and chemical exfoliants are far too harsh for skin in this state and will cause further damage.

Wear loose, soft, breathable clothing over sunburned areas. Tight fabrics rubbing against damaged skin slow the healing process and add unnecessary discomfort. Keep reapplying aftersun throughout the peeling phase too, not just on the first day. The skin continues to need support as it repairs.

Source: Skin Cancer Foundation, 2025

While the skin is peeling and healing, the new skin underneath is significantly more sensitive to UV exposure than normal skin. Protect it by covering affected areas with loose clothing when outdoors and applying a gentle, dermatologically tested sunscreen to any exposed areas.

This also prevents further pigmentation from developing over the already inflamed skin. For more on how UV exposure worsens post-inflammatory pigmentation, that guide covers the detail.

Not all aftersun formulas are the same. These are the three ingredients with the strongest evidence for supporting sunburned skin specifically.

A succulent plant whose gel has been used in skincare for centuries. A randomized, double-blind study confirmed that Aloe Vera significantly reduces UV-induced skin redness and inflammation, with effects comparable to hydrocortisone in some measures.

Source: Aloe Vera: An Extensive Review, 2024

Sunburned skin loses moisture at an accelerated rate than healthy skin. Hyaluronic Acid is a naturally occurring molecule in the skin that acts as a humectant, attracting and retaining water at the surface to help compensate for that loss.

A 2021 peer-reviewed clinical study published in Dermatology and Therapy found that a topical Hyaluronic Acid serum produced an immediate increase in skin hydration of 134% after application, with a sustained increase of 55% at six weeks

For sunburned skin in particular, that immediate hydration effect is what makes the difference in the hours after exposure.

Source: Dermatology and Therapy, 2021

A natural fat extracted from the African shea tree that strengthens the skin barrier and locks in moisture.

A 2025 study found Shea Butter reduced trans-epidermal water loss by 37.8% within 24 hours of application, directly addressing one of the key effects of sunburned skin.

Source: Open Journal of Chemistry, 2025.

A quick reference for what to avoid during the healing process:

• Petroleum jelly or heavy occlusive products in the first 24 to 48 hours. These trap heat and slow the skin’s natural cooling process.
• Products containing alcohol or artificial fragrance. These sting, dry out, and irritate skin that is already compromised.
• Exfoliants, scrubs, or retinoids. Too harsh for damaged skin and will cause further irritation rather than helping.
• Ice or ice packs directly on the skin. Extreme cold on sunburned skin can cause additional damage.
• Do not pop blisters. Blisters are the skin’s natural protective mechanism. Breaking them exposes raw tissue and significantly increases the risk of infection. Source: NHS, 2025.

Mild sunburn, redness, tenderness, and peeling can be managed at home with the steps above.

However some situations require professional medical attention and it is important to recognize them.

Seek medical advice if the sunburn covers a large area of the body, is accompanied by blistering, or if blisters show signs of infection such as increased pain, swelling, warmth, or oozing.

Seek medical advice immediately if sunburn is accompanied by fever, chills, nausea, dizziness, or extreme fatigue. These are symptoms of heat exhaustion or sun poisoning and require medical treatment rather than skincare. Do not rely on aftersun or any skincare product as a treatment for severe sunburn.

PoolBar’s Sundowner Aftersun Body Lotion combines Aloe Vera, Hyaluronic Acid, and Shea Butter in a lightweight, cooling formula designed to give skin what it needs after a day in the sun.

Dermatologically tested for all skin types including sensitive skin, cruelty-free, with a signature coconut and vanilla scent.

Sunburn is preventable. Applying the right SPF correctly, reapplying consistently, and covering up during peak UV hours removes the need for sunburn recovery entirely.

For a full guide to how often to reapply sunscreen and what resets the clock, and for building sun protection into your daily routine, When To Apply Sunscreen In Your Skincare Routine covers each step.