Final answer:
Third-degree burns should be treated by seeking medical attention. Cold compresses or submerging in cold water may provide temporary relief, but professional medical treatment is necessary. Icing the affected area should be avoided.
Step-by-step explanation:
Third-degree burns are severe burns that fully extend into the epidermis and dermis, causing damage to the tissue, nerve endings, and sensory function. These burns require medical attention and should not be treated at home. The correct course of action is to seek immediate medical help. Applying cold compresses or submerging the affected area in cold water may provide temporary relief, but it is important to remember that these measures do not replace professional medical treatment. It is not advised to ice the affected area, as extreme cold can further damage the tissue. Seeking medical attention is crucial in managing and treating third-degree burns.