Definition & Meaning of "first-degree burn"

What is a "first-degree burn"?

A first-degree burn is a mild burn affecting only the outer layer of the skin. It typically causes redness, pain, and slight swelling, similar to a sunburn. The skin may feel dry and sensitive to touch but it does not blister. First-degree burns usually heal on their own within a week without scarring, and treatment involves cooling the burn with cold water, applying soothing lotions or aloe vera, and keeping the area clean and protected.