Believe it or not, there really is a painful disorder known as "Burning Mouth Syndrome!" While it does not occur commonly, it can affect an individual for weeks, months or years. This syndrome, as its name implies, causes a burning sensation in the oral cavity. The primary symptoms is a sensation in the mouth that has been described as burning, scalding, or even tingling. It is difficult to diagnose because there is no visible abnormality for a doctor, dentist, or other health care provider to see upon exam.
Burning Mouth Syndrome is considered "Primary BMS" if no underlying medical condition can be associated with it. In this case, damage to nerves seems to be the underlying cause of the problem.
"Secondary BMS" can be associated with an existing medical problem such as diabetes, thyroid disorders, allergies, Sjorgren's syndrome, certain medications or nutritional deficiencies, an oral infection or even gastroesophogeal reflux disease GERD).
BMS, whether primary or secondary, is a complex pain disorder and treatments are highly individualized. In cases of secondary BMS, treatment of the underlying problem will help to alleviate the condition. Lifestyle modifications, including abstinence from tobacco and alcohol, and avoidance certain foods and oral care products will help bring the condition under control.
Sources: NIH; Flickr