Final answer:
A second-degree burn involves damage to both the epidermis and dermis layers, resulting in skin swelling and blistering. Cleanliness is essential for preventing infections and promoting healing.
Explanation:
A second-degree burn affects both the epidermis and a portion of the dermis. These burns lead to swelling and blistering of the skin. It is crucial to maintain cleanliness to prevent infections for proper healing.
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