First-degree burns are usually limited to redness, a white plaque, and minor pain at the site of injury. These burns usually extend only into the epidermis. These burns are usually seen in sunburnt patients or a flash burn, which is a sudden and brief burst of heat. First-degree burns can be treated at home unless the burn covers a large area.
Second-degree burns additionally fill with clear fluid, have superficial blistering of the skin, and can involve more or less pain depending on the level of nerve involvement. Second-degree burns involve the superficial dermis and may also involve the deep dermis layer. Third-degree burns are which most of the epidermis is lost. They additionally have charring of the skin, and sometimes produce hard eschars. An eschar is a