Symptoms you are likely to notice Burns are classified according to their degree of seriousness. First-degree burns are the least serious. They are often caused by contact with hot objects or scalding. Symptoms include redness, mild swelling, and pain. These burns usually heal by themselves.
Most sunburns are first-degree burns.
Second-degree burns are often caused by direct contact with very hot liquids. They can also result from contact with gasoline, kerosene, and chemicals. Symptoms of second-degree burns include red or blotchy skin , blisters , and swelling . Second-degree burns are noticeably wet. This wetness results when plasma, the liquid part of blood , seeps out through the damaged skin layers.