Typically, medical healthcare professionals describe burn injuries in one of three categories:nFirst-degree burns: First-degree burns refer to the outer layer of the skin and cause discomfort. First-degree burn injuries can result in temporary disability.nSecond-degree burns: This degree of burn usually causes blisters and several weeks of pain. Second-degree burns go under the first layer of the skin and can cause swelling, fluid buildup, and potential scarring.nThird-degree burns: Third-degree burns are severe. They are a full thickness injury to several layers of skin where the skin dies and skin grating is generally required . 3rd degree burns require urgent medical attention and often result in permanent scarring, disfigurement, and disability.