After-Sun Care: What Actually Helps a Sunburn Heal
Evidence-based relief, not just aloe vibes.
A sunburn is a radiation injury: redness typically appears within 2-6 hours and peaks around 12-24 hours after sun exposure, so damage is already done by the time skin feels hot.
Dermatologists frame after-sun care as damage control, not repair: cool the skin, hold in moisture, and ease inflammation while the burn heals on its own.
Questions we get a lot
What is the best way to treat a sunburn at home?
Get out of the sun, then cool the skin with a cool (not ice-cold) compress or bath. Apply a gentle, fragrance-free moisturizer while skin is damp, drink extra water, and take an over-the-counter anti-inflammatory like ibuprofen for pain and swelling. Avoid harsh or 'caine' products and leave any blisters intact.
How long does a sunburn take to heal?
A mild sunburn usually fades over about 3-5 days, often with peeling as the skin sheds damaged cells; more severe, blistering burns can take a week or longer. Keeping the skin moisturized and protected from further sun while it heals helps minimize discomfort and peeling.
When is a sunburn serious enough to see a doctor?
Seek medical care if a sunburn covers a large area with blisters, or comes with fever, chills, nausea, dizziness, confusion or signs of dehydration — these can indicate sun poisoning or heat illness. Severe blistering and any reaction in an infant also warrant prompt medical attention.
r/SkincareAddiction: 'I got a bad sunburn yesterday — what actually helps it heal faster?'