The skin, which acts as a barrier     1    disease, toxins and the sun's harmful rays, is an essential part of your body. So if your skin gets burned, it can lead to very serious injuries. Depending on the     2    (deep) of skin damage, burns are divided into three types. First-degree burns only affects the top few millimeters of the skin. Second degree burns go below the top layer of the skin. They are serious and take a few weeks     3     (get) better. Third-degree burns affect every layer of the skin. They cause very severe internal     4    (injury).

The cool water stops the     5    ( burn)process and reduces the pain and swelling. Remove any clothes using scissors     6    necessary， unless you see the fabric     7     (stick) to the burnt skin.     8     (apply) oil to the injured areas is a bad idea, as it will keep the heat and may cause     9     (infect). If the victim is suffering     10    second or third-degree burns, he/she needs to be taken to the hospital at once.