NAN: First-Degree Burns May 7, 2018 Michelle LaRowe NAN: First-Degree Burns Lesson Progress 0% Complete First-degree burns are the mildest of burns and affect only the top layer of skin. The skin appears dry and free from blisters. There may be redness, swelling and some pain. They may be caused by a mild sunburn or a sudden, brief burst of heat. First-degree burns usually heal in less than a week. Previous Topic Back to Michelle LaRoweNAN: First-Degree Burns05.07.2018