(HealthDay News) — Spending too much time outdoors without protective sunscreen can take a toll on your skin.

Unlike a thermal burn, sunburn may not be immediately noticeable. Symptoms usually start four hours after sun exposure and resolve within a week, says the U.S. Centers for Disease Control and Prevention.

For minor sunburn, the CDC suggests:

  • Treat pain with aspirin, acetaminophen or ibuprofen.
  • Drink lots of water.
  • Avoid additional sun exposure.
  • Take cool baths or apply cool wet cloths to the burned area.
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