What it isWhy does my tongue burn?
A burning tongue can come from something you can see, such as an ulcer, a coated or red tongue, a scald from hot tea or a sharp tooth edge. When the mouth looks completely normal and the burning carries on for weeks, dentists think about two groups. In the first, the burning is a symptom of another problem: dry mouth, a fungal infection, a reaction to a dental product, a vitamin shortfall or a medicine. Treat that cause and the burning usually eases. In the second, called primary burning mouth syndrome, no such cause is found and the problem is thought to lie in the nerves that carry pain and taste.
The US National Institute of Dental and Craniofacial Research (NIDCR) describes the feeling as burning, scalding or tingling, most often on the tongue, roof of the mouth and lips, sometimes with dry mouth or a changed taste, and notes that it is more common in women after menopause. Many people say it is milder on waking and builds through the day, and that eating or chewing gum briefly helps.
The order matters: the label of burning mouth syndrome is given only after the treatable causes have been looked for.