Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
1
Is any of this happening now?
Call 911
Call emergency services if your tongue, lips, or throat suddenly swell, especially with breathing difficulty, wheezing, faintness, or widespread hives.
These can be signs of a severe allergic reaction and are not typical uncomplicated glossopyrosis.
Other emergency signs, for anyone
Someone who is struggling to breathe, gasping, choking, or cannot get words out
Someone who has chest pain, tightness or pressure lasting more than a few minutes
Someone who has sudden weakness or drooping on one side of the face or body, slurred speech, or sudden confusion
Someone who is unconscious, or cannot be woken
Someone who is bleeding heavily and it will not stop with firm pressure
Someone who has had a seizure that will not stop, or does not wake up afterwards
Someone who has lips or skin that look pale, blue, grey or blotchy
Someone who you believe has taken an overdose or swallowed something poisonous
2
Is any of this happening?
Be seen today
Seek prompt medical or dental advice if you develop:
A persistent ulcer, lump, red patch, or white patch
Bleeding, increasing pain, fever, or spreading facial swelling
Difficulty swallowing food or fluids
Unplanned weight loss or signs of dehydration
New numbness, weakness, or other neurological symptoms
3
Does any of this apply?
Book an appointment
Arrange a routine dental or medical appointment if tongue burning lasts longer than about two weeks, keeps returning, or affects eating, sleep, or daily life.
Earlier assessment is reasonable if you have diabetes, a weakened immune system, significant dry mouth, or recent changes to medicines or dental work.
Every sign above is quoted from the sofidex article on Glossopyrosis. If you are not sure, err upward — it is always reasonable to be checked.