Burning skin is a painful condition that can occur when the skin comes into exposed to fire, hot surfaces or too much sun exposure. According to the Merck Manual, burns can affect different layers of your skin. A first-degree burn is superficial as it affects only the epidermis (outer layer of skin).

Skin that has been burned becomes red, and blisters may form in the case of a second- or third-degree burn, says the Mayo Clinic. Third-degree burns are the most severe burns and may be accompanied by black or white, charred areas of the skin. If you are suffering from third-degree burns, see a doctor immediately.

Burns are classified according to their severity -- and so is their treatment. The skin is the body's barrier against infection and bacteria, so when the skin is affected by even a minor burn, complications can arise. Getting prompt and appropriate treatment for burns is important.

You can suffer a chemical burn by spilling bleach on your skin. If your burn is severe, you need to seek immediate medical attention.

Drinking or eating food that is too hot can result in painful burn blisters on the tongue. These burn blisters can make it hard to eat, sleep, drink or talk, and can remain painful even when you aren't doing anything at all.