Burning mouth syndrome, when the mouth feels on fire: causes and management

Burning mouth is a hot, stinging feeling at the tip of the tongue, the palate or the inside of the lip, as if scalded. In Korea, the National Health Information Portal describes cases in which such pain continues for 4 to 6 months or more without clear abnormalities on tests as burning mouth syndrome, and advises that it is rare before the 30s and common in women in their 50s and 60s. The order of diagnosis is to first check that there is no other cause producing the burning, such as dry mouth or candidiasis.

Published 2026-11-08 · Updated 2026-11-08 · DentalStatics editorial team

Key facts

Definition of burning mouth syndrome	Burning pain of the tongue and oral lining lasting 4 to 6 months or more with no abnormality on tests (source: KDCA National Health Information Portal)
Frequency	0.7 to 4.6% (source: KDCA National Health Information Portal)
Who gets it	Rare before the 30s; women in their 50s and 60s, especially after menopause (source: KDCA National Health Information Portal)
Ratio of women to men	About 3:1 to 16:1 (source: KDCA National Health Information Portal)
Common sites	The front two thirds of the tongue, the front of the palate, the lining of the lower lip (source: KDCA National Health Information Portal)
Presumed causes	Stress, anxiety, depression, reduced saliva, menopause (source: KDCA National Health Information Portal)

What kind of symptom is burning mouth?

The pain of burning mouth syndrome is described as a burning or stinging feeling like being scalded by hot soup. The National Health Information Portal explains that this pain mainly appears on the front two thirds of the tongue, the front of the palate and the lining of the lower lip, and that dry mouth or a change in taste may also appear with it.

A feature is that the mouth looks normal on the outside. The stomatitis information on the National Health Information Portal also explains that in burning mouth syndrome no unusual lesion is seen in the mouth. If you see a raw or reddened spot or a white film, think first of other causes such as stomatitis or candidiasis.

In the classification of the National Health Information Portal, burning mouth syndrome belongs to the non-infectious stomatitis, like aphthous stomatitis and radiation mucositis. It is not a contagious disease, so there is no need to use separate dishes from family.

Why does burning mouth happen?

The National Health Information Portal says the exact cause is not yet clear and explains that stress, anxiety, depression, reduced saliva and menopause are presumed to be involved. The ratio of women to men is about 3:1 to 16:1, with more women, and the incidence is known to be high particularly in women after menopause.

Dry mouth is also closely related to burning. The dry mouth information on the National Health Information Portal explains that when the mouth is dry, discomforts such as burning, changes in taste and bad breath can arise. Seoul National University Hospital's medical information advises that a burning feeling in the mouth can appear in Sjogren's syndrome, where saliva and tear secretion decrease. Medicines you take can also dry the mouth, so the medicines you take are checked as well.

How is burning mouth diagnosed?

Burning mouth syndrome is a diagnosis given when tests show no clear abnormality, so it is diagnosed after treatable causes are checked one by one. At the exam, the mouth is looked at and, if needed, blood tests are done to check that the items below are not hiding. Bringing a list of the medicines you take, the conditions you have and any recent denture or prosthetic treatment makes it easier to narrow the cause.

Dry mouth (xerostomia) and the drugs or conditions that cause it
Oral candidiasis, which appears as a white film or red erythema
Friction from ill-fitting dentures or sharp teeth and prostheses
Nutritional deficiencies such as iron or vitamin B12
Sjogren's syndrome, with dry mouth and dry eyes together

How is burning mouth treated?

The National Health Information Portal introduces holding clonazepam in the mouth as a topical treatment, and explains that lidocaine mouthwash, antidepressants, antipsychotics, anticonvulsants, painkillers, hormone therapy and cognitive behavioral therapy can also be tried. If another cause such as dry mouth or candidiasis is also confirmed, treatment suited to that cause comes first.

The same material stresses that it is important to reassure the patient with the explanation that the condition is not serious and is not cancer. When pain lasts a long time, people worry that it might be a serious disease, and understanding the diagnosis accurately is itself part of the treatment. Use medicines as instructed by the prescribing doctor and report any uncomfortable symptoms right away.

What daily management reduces burning mouth?

If dry mouth is also present, refer to the dry mouth guidance of the National Health Information Portal. Rather than drinking a lot at once, drink about 1.5 to 2 L of water a day in small amounts often to moisten the mouth, and try cutting back on alcohol, tobacco and caffeine, which the same guidance explains make the mouth drier. Sugar-free gum is introduced as a way to help saliva flow.

Spicy, hot and sour foods can increase the burning, so cut back on them while symptoms are severe. If the burning gets worse after using a strongly irritating mouthwash, stop using it and discuss it at the visit. Recording when during the day the pain is worst helps judge the effect of treatment.

Common myths and facts

Myth: A burning mouth is very likely oral cancer.

The National Health Information Portal advises that it is important to reassure patients that burning mouth syndrome is not a serious disease and is not cancer. However, if a raw or firm lesion is seen, it is checked separately.

Myth: If the tests are normal, it does not really hurt.

The National Health Information Portal describes burning pain lasting 4 to 6 months or more without clear abnormality on tests as a disease called burning mouth syndrome.

Frequently asked questions

Which department treats burning mouth?

Oral medicine in dentistry treats burning mouth and mouth pain. Seoul National University Hospital's medical information advises that when dry mouth or dry eyes develop in women over 40, being tested in ophthalmology and internal medicine is important for early diagnosis of Sjogren's syndrome. Also tell them when the burning began and whether you started any new medicine around that time.

My mouth started burning after menopause. Is it related?

The National Health Information Portal explains that burning mouth syndrome has a high incidence in women after menopause and that menopause is presumed to be involved in the cause. Hormone therapy is sometimes tried as treatment, so discuss it together with your obstetrics and gynecology history.

Should I wait until the burning has lasted 4 to 6 months?

The 4 to 6 months is only a diagnostic criterion, not a period to wait. If burning has started, first get an exam to see whether there are treatable causes such as dry mouth, candidiasis, denture friction or nutritional deficiency. If a cause is found early, the suitable treatment can start that much sooner.

Can burning mouth get better?

The course differs from person to person. If another cause is confirmed, treat it and see whether the burning decreases, and if there is no cause, the aim is to reduce the pain with drug treatment and cognitive behavioral therapy. Managing coexisting dry mouth, anxiety or sleep problems is also part of treatment.

Is a strange taste also related to burning mouth?

The National Health Information Portal explains that dry mouth or taste disturbance may appear along with burning mouth syndrome, and the dry mouth information also advises that taste can change when the mouth is dry. If you have a change in taste, mention it at the visit.

References

Korean version →