First of all, you should call 911 immediately if:
The very first thing you should do is put out the fire, or completely remove the victim from the source of the burn such as fire, steam, hot liquid, or anything else. This may include instructing the person or even helping them to “stop, drop, and roll” if they have not done so already.
Next, you should remove any charred, burned, or hot clothing from off the person; these may further damage the person’s skin. If the clothing sticks to the skin, cut around it.
You should also remove any tight clothing or jewelry such as rings, necklaces, or bracelets. Burns can cause serious swelling.
The first two steps are the same; you should cool the burn and protect it right away. However, for severe burns you should attempt to prevent the person from going into shock by laying the person flat, elevating the feet and burned area about 12 inches, and covering the person with a blanket.
You should see a doctor right away if the burned area is more than two inches long, or it shows any signs of infection including oozing.