Tooth Pain: When It Cannot Wait

The lists, before anything else

These are quoted from the NHS page on dental abscess, last reviewed on 18 March 2026.

Call 999 or go to A&E if you: "are finding it hard to breathe, speak or swallow"; "have a swollen or painful eye, or suddenly start having problems with your eyesight"; "have a lot of swelling in your mouth"; "are finding it hard to open your mouth". In the United States, that is 911 or an emergency department.

Ask for an urgent dentist appointment or get help from NHS 111 if you think you have a dental abscess. The symptoms that page lists include intense toothache or pain in the gums, redness inside the mouth or outside on the face or jaw, sensitivity to hot or cold in the affected area, a bad taste in the mouth, difficulty opening the mouth and chewing, a swollen face or jaw, swollen glands on each side of the neck, and a high temperature.

The NHS page on toothache, reviewed on 1 July 2024, adds its own A&E trigger: go if "the area around your eye or your neck is swollen", or if "swelling in your mouth or neck is making it difficult for you to breathe, swallow or speak".

MedlinePlus, run by the US National Library of Medicine and reviewed on 5 February 2026, sets the threshold for seeking care at all lower: "You have a severe toothache; You have a toothache that lasts longer than a day or two; You have fever, earache, or pain when opening your mouth wide."

If any of that describes your situation, stop reading and act on it. Nothing below changes it.

Why swelling is the symptom that matters most

Because of where it can go. The American Association of Endodontists states the mechanism without softening it: "If left untreated, the localized infection in the tooth can progress into an abscess and spread to adjacent tissues, and in some cases can even be life threatening."

That is why the emergency list is about breathing, swallowing, speaking, the eye and opening the mouth, rather than about how much the tooth hurts. Those symptoms are not measures of pain. They are signs that something has left the tooth and is affecting structures around it — and at that point it has stopped being a dental problem and become a medical one.

Pain level is a poor guide in both directions. Severe pain can come from something that is not urgent, and something urgent can arrive with a swollen face and surprisingly little pain, particularly once a pulp has died.

The advice that is not about teeth at all

MedlinePlus lists among the causes of toothache: an abscessed tooth, an earache, injury to the jaw or mouth, a sinus infection, tooth decay, tooth trauma — and "heart attack (can include jaw pain, neck pain, or toothache)".

We are not going to expand on that, because it is not our subject and we are not qualified. It belongs here only because it is on a national health service's list of causes and because a page about tooth pain that omitted it would be leaving something out.

Where to go, which is not always obvious

The NHS toothache page includes one line worth repeating because it saves a wasted day: "Do not go to your GP as they will not be able to give you dental treatment."

Where to go instead depends on which list you are on. Emergency symptoms mean emergency services. Urgent symptoms mean a dentist today — in England, NHS 111 can help find one out of hours. In the United States, an emergency department will treat the infection and manage the situation, but it is not equipped to treat the tooth, which means a dental appointment follows regardless.

While you are waiting

The NHS toothache page suggests paracetamol or ibuprofen, rinsing with salt water, eating soft foods and using a soft toothbrush, and avoiding sweet, very hot or very cold foods, and smoking. Its abscess page adds a warning we will repeat exactly: "do not take more than the recommended dose of any painkiller."

What the dose is belongs on the packet, and a pharmacist is the person to ask about it, including about anything else you take. That is not a line on this site we are going to cross.

Two things we will say plainly. Antibiotics are not a treatment you can arrange for yourself. The NHS abscess page notes that painkillers may be offered after treatment and antibiotics may also be given — after treatment, by the person treating you. And no amount of anything applied to the outside of a tooth reaches an inflamed pulp, which sits in a sealed chamber in the middle of it.

The thing nobody expects: it stops hurting

A tooth going quiet is not proof that the problem has gone. A pulp can die, taking the pain with it, while the infection underneath carries on without a nerve left to complain about it.

This is the single most common way a tooth problem gets worse in silence. If pain that was severe disappears on its own, without treatment, that is a reason to be seen rather than a reason to relax.

When it is not urgent

Most toothache is not an emergency. The NHS non-urgent threshold for seeing a dentist is pain lasting more than two days, pain that does not go away when you take painkillers, pain with fever, pain on biting, red gums, a bad taste, or swelling of the cheek or jaw.

At that point the question becomes what is actually wrong, which is answered by an examination and an X-ray and by nothing else. The published signs that tend to point towards a pulp problem are in the chapter on what the signs are and why none of them settles it, and what the answer costs is on our page pricing root canal treatment from three published fee schedules.

There is one piece of good news buried in the money. On all three schedules this site reads, settling the pain for now is its own cheap line — Pennsylvania allows $30.00 for palliative treatment of dental pain per visit, and Montana allows $79.04, although Montana's line stops at age 20. Getting seen is not the same purchase as getting the whole treatment done, and the first does not commit you to the second.