Sunburn
Sunburn — skin damage caused by overexposure to ultraviolet radiation, resulting in redness, warmth, pain, and sometimes swelling or blistering. It is an inflammatory response that reflects injury to skin cells and DNA from UV light. Beyond short-term discomfort, repeated sunburns increase the long-term risk of premature aging and skin cancer.
Key points
- Sunburn is caused primarily by UVB radiation damaging skin cells, triggering inflammation and redness.
- Symptoms may appear within hours and peak around 12 to 24 hours after exposure.
- Cool compresses, gentle moisturizers, and hydration can ease discomfort while the skin heals.
- Broad-spectrum sunscreen, protective clothing, and shade are key to preventing sunburn and cumulative UV damage.
Frequently asked
How can I soothe a sunburn at home?
Cool compresses, gentle fragrance-free moisturizers, staying hydrated, and avoiding further sun exposure can help ease discomfort as the skin recovers. Blistering, extensive, or severe burns should be evaluated by a healthcare professional.
Does a sunburn increase skin cancer risk?
Yes; repeated sunburns, especially blistering ones, are associated with a higher lifetime risk of skin cancers including melanoma. Consistent sun protection helps reduce this cumulative risk.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.
