What to Do for a Toothache and When to See a Dentist

A toothache calls for over-the-counter pain relief right now and a dental appointment as soon as possible. The single most effective combination you can reach for at home is ibuprofen and acetaminophen taken together, which outperforms either drug alone. But pain relief is not treatment. Nearly every toothache traces back to a problem inside or around the tooth that will not resolve on its own, and some warning signs mean you should skip the wait-and-see approach entirely and get professional help the same day.

Why Teeth Hurt in the First Place

Most toothaches start with bacteria. When decay works through enamel and reaches the softer tissue underneath, it eventually irritates or infects the pulp, the living core of the tooth packed with nerves and blood vessels. That inflammation is what produces the throbbing, pressure-sensitive pain people recognize as a classic toothache. If the infection advances beyond the root tip and into the surrounding bone and tissue, it becomes what dentists call apical periodontitis. This can smolder for months without symptoms before flaring up suddenly, which is why a tooth that “seemed fine” can start screaming overnight.

1Endodontic Topics. Classification, diagnosis and clinical manifestations of apical periodontitis

Other common causes include cracked teeth, exposed root surfaces from receding gums, a failed or leaking filling, and gum disease that has eroded the bone around a tooth’s roots. Knowing the cause matters because the treatment is different for each one, but the at-home pain relief strategy is largely the same regardless.

The Best Over-the-Counter Pain Relief

Ibuprofen (an anti-inflammatory) and acetaminophen (a pain reliever that works through a different pathway) are the two drugs to reach for. Taken together, they consistently beat either one used alone for dental pain. A randomized trial after oral surgery found that people who took both drugs together had significantly lower pain scores at rest and during activity compared to those who took just one of the two.

2British Journal of Anaesthesia. Combined acetaminophen and ibuprofen for pain relief after oral surgery in adults: a randomized controlled trial

A separate double-blind trial confirmed the same pattern. The combination of ibuprofen 400 mg and paracetamol (acetaminophen) 1,000 mg produced significantly better pain relief over eight hours than either drug alone across multiple pain measures.

3Clinical Therapeutics. Comparison of the analgesic efficacy of concurrent ibuprofen and paracetamol with ibuprofen or paracetamol alone in the management of moderate to severe acute postoperative dental pain

The practical approach: take a standard dose of ibuprofen (200-400 mg) and a standard dose of acetaminophen (500-1,000 mg) at the same time, repeating every six to eight hours as directed on each product’s label. Because these drugs work through entirely different mechanisms, combining them does not increase the risk of either one’s side effects the way doubling the dose of a single drug would. An Australian primary care guideline endorses this combination as more effective than adding opioids to either drug alone.

4PubMed Central. Management of dental pain in primary care

Other Home Remedies That May Help

Clove oil has a genuine pharmacological basis. Its active compound, eugenol, has documented anti-inflammatory and analgesic properties. Dentists have used eugenol-containing materials for generations. You can dab a small amount of clove oil onto a cotton ball and hold it against the sore tooth for temporary relief. The effect is real but modest and short-lived, so think of it as a bridge until your pain relievers kick in, not as a standalone solution.

5Journal of Drug Design and Medicinal Chemistry. Comprehensive Overview of Eugenol: Focusing on Sources, Structure, Pharmacological Activities, Mechanisms of Action, Safety Profile, and Applications

Cold application is another option with some clinical support. A recent randomized trial found that cold irrigation during root canal treatment reduced both pain and a key inflammatory marker (substance P) significantly. You probably are not irrigating your own root canal at home, but the principle extends to applying a cold pack to the outside of your cheek near the painful tooth. Keep it wrapped in a cloth and limit sessions to about 15 minutes to avoid skin irritation.

6PubMed Central. The impact of using cold irrigation on postoperative endodontic pain and substance P level: a randomized clinical trial

Saltwater rinses are a time-honored standby. Dissolving about half a teaspoon of salt in a cup of warm water and swishing gently can draw some fluid out of swollen tissue and flush loose debris from around a damaged tooth. There is no magic to it, but it is cheap, harmless, and can be repeated several times a day.

Common Mistakes That Make Things Worse

One of the most widespread and damaging mistakes is placing an aspirin tablet directly against the gum next to a painful tooth. People assume that putting the drug right at the source of pain will work faster. It does not. Aspirin is acidic, and holding it against soft tissue causes chemical burns, tissue death, and erosion of both the gum and the tooth surface.

7Saudi Endodontic Journal. Chemical burn from direct application of aspirin onto a painful tooth

Case reports in the dental literature describe patients with severe erosion of tooth enamel and soft-tissue damage from this practice.

8The Journal of the American Dental Association. Tooth erosion caused by chewing aspirin

Topical benzocaine gels (brands like Orajel) are sold specifically for toothaches, and they do numb the area temporarily. But they carry a rare risk worth knowing about: methemoglobinemia, a condition in which your blood loses some of its ability to carry oxygen. Most reported cases involve benzocaine spray in hospital settings, but cases linked to over-the-counter gel use have also been documented.

9PubMed Central. An evaluation of 10 percent and 20 percent benzocaine gels in patients with acute toothaches

The practical takeaway: if you use a benzocaine product, follow the label strictly on how much and how often. Do not reapply compulsively just because the numbness wears off every 20 minutes.

10PubMed. Severe methemoglobinemia linked to gel-type topical benzocaine use: a case report

Another mistake is assuming that heat helps. Applying a heating pad or hot water bottle to the outside of a swollen jaw can increase blood flow to an infected area and make swelling worse. Stick with cold.

When You Need a Dentist Right Away

Some toothache situations can wait a day or two for a scheduled appointment. Others cannot. A dental infection that spreads can become genuinely dangerous, with documented complications including airway compromise, infection spreading to the space around the heart (mediastinitis), and blood clotting in veins near the brain.

11European Journal of Emergency Medicine. Severe dental infections in the emergency department

Seek same-day care or go to an emergency room if you experience any of the following:

  • Fever: a temperature above 101°F (38.3°C) alongside tooth pain suggests the infection has spread beyond the tooth itself.
  • Facial swelling: swelling that distorts the shape of your face or extends to your eye or neck is a medical emergency.
  • Difficulty swallowing or breathing: swelling from a lower tooth can track into the floor of the mouth and throat, threatening your airway.
  • Severe, uncontrolled pain: if over-the-counter pain relief at full dose does nothing after an hour, you need professional intervention.
  • Pus draining into your mouth: a foul-tasting discharge near a tooth means an abscess has ruptured. The pressure relief may actually reduce your pain temporarily, but the infection still needs treatment.

For everything else, a routine dental appointment within a few days is reasonable. Persistent sensitivity to hot or cold, a dull ache that comes and goes, pain when biting down, or a tooth that just “doesn’t feel right” all warrant professional evaluation, but they are not emergencies.

What a Dentist Will Actually Do

The treatment depends entirely on the diagnosis. A cavity that has not reached the pulp gets a filling. A tooth with an infected or dying pulp gets a root canal. A tooth that is too damaged to save gets extracted. In a prospective study comparing root canal treatment and extraction, both groups reported similar impacts on oral health-related quality of life at the one-year mark, so neither option is inherently “better” in terms of how you will feel afterward. The choice depends on the tooth’s structural condition and your long-term dental plan.

12PubMed Central. A comparison of oral health-related quality of life and satisfaction among patients undergoing root canal treatment or tooth extraction

Sometimes the first visit is about getting you out of pain and controlling infection before definitive treatment at a follow-up. The dentist might open the tooth to drain pressure, place a medicated dressing, or prescribe medications if needed.

The Antibiotic Misconception

Many people show up expecting antibiotics for a toothache, and some urgent care or emergency physicians reflexively prescribe them. The evidence says this is usually the wrong call. A clinical practice guideline from the American Dental Association recommended against using antibiotics in most toothache scenarios, noting that the benefits are likely negligible while the potential harms are large. Antibiotics were recommended only when there are signs of systemic involvement like fever or malaise, or when the risk of the infection spreading is high.

13PubMed Central. Evidence-based clinical practice guideline on antibiotic use for the urgent management of pulpal- and periapical-related dental pain and intraoral swelling

This is not a fringe opinion. A Singapore medical guideline reached the same conclusion: without evidence that the infection has spread, antibiotics have not been shown to reduce pain or prevent further infection.

14PubMed Central. Managing tooth pain in general practice

The UK’s antimicrobial stewardship program put it bluntly as a patient-facing message: antibiotics do not cure toothache. The concern is not just that they are ineffective for most dental pain. Unnecessary antibiotic prescriptions contribute to antibiotic resistance and expose patients to side effects including serious gut infections.

15PubMed. I’ve got Toothache, I need Antibiotics: a UK Perspective on Rational Antibiotic Prescribing by Dentists

The actual fix for a tooth infection is removing the source of infection through dental procedures, whether that means draining an abscess, doing a root canal, or extracting the tooth. Antibiotics can be a useful add-on when the infection has spread, but they are not a substitute for treatment and they are not going to resolve the problem on their own.

4PubMed Central. Management of dental pain in primary care

When the Pain Is Not Coming from a Tooth at All

Not every pain that feels like a toothache originates in a tooth. The anatomy of the face means several conditions can masquerade as dental problems, and chasing the wrong diagnosis leads to unnecessary treatment.

Sinus infections are a frequent culprit. The roots of the upper back teeth sit very close to the floor of the maxillary sinus, and when the sinus is inflamed, the resulting pressure can feel exactly like a toothache in those teeth. The giveaway is that multiple upper back teeth hurt at once, the pain worsens when you bend forward, and you have other sinus symptoms like congestion or a feeling of fullness in the cheeks.

16PubMed. Rhinosinusitis in oral medicine and dentistry

Trigeminal neuralgia is a more dramatic mimic. This nerve condition produces sharp, electric-shock-like bursts of pain in the face that can localize so precisely to one tooth that patients and even clinicians mistake it for a dental problem. Case reports describe patients who underwent root canals and even extractions before the real diagnosis was identified.

17PubMed. Trigeminal neuralgia mimicking odontogenic pain. A report of two cases

A retrospective study found that misdiagnosis-driven dental extractions are a recognized problem in patients with trigeminal neuralgia, with a considerable number of people losing healthy teeth before the neurological cause was caught.

18PubMed Central. Misdiagnosis-Driven Dental Extractions in Patients with Trigeminal Neuralgia: A Retrospective Study

Other conditions that can feel like toothaches include temporomandibular joint (TMJ) disorders, migraines, ear infections, and even cardiac events (pain from a heart attack occasionally refers to the lower jaw). If your dentist examines you and cannot find a dental explanation, take that finding seriously rather than seeking a second opinion who might do unnecessary work. Ask about non-dental causes.

Toothache During Pregnancy

Pregnancy changes the calculus on which pain medications are safe. Acetaminophen has long been considered the go-to option for pain during pregnancy, though newer research has raised some concerns about potential associations with childhood health outcomes when used extensively. Commonly prescribed pain medications appear to be relatively safe during pregnancy overall, but caution is warranted in the third trimester.

19PubMed Central. Treating pain during pregnancy

NSAIDs like ibuprofen pose specific risks later in pregnancy, including effects on fetal blood flow, reduced amniotic fluid, and potential prolongation of labor. The general guidance is to avoid ibuprofen and naproxen in the third trimester entirely, and to use them only with a healthcare provider’s guidance in earlier trimesters.

20PubMed. Prenatal tolerability of acetaminophen and other over-the-counter non-selective cyclooxygenase inhibitors

The best move if you are pregnant and dealing with a toothache is to call both your dentist and your obstetrician. Dental treatment itself, including local anesthesia, is safe during pregnancy and is actually recommended rather than leaving an infection untreated. The second trimester is often considered the most comfortable window for elective dental work, but emergencies should be handled whenever they arise.

Managing Toothache in Children

The same two drugs that work for adults, ibuprofen and acetaminophen, are the front-line options for children with toothaches. When dosed as directed for the child’s age and weight, the risk of harm from either medication is low. Acetaminophen in particular requires careful dosing, as both short- and long-term overdoses can cause liver damage, which is why children’s formulations have been reformulated with lower concentrations to reduce the risk of accidental overdose.

21PubMed Central. Evidence-based clinical practice guideline for the pharmacologic management of acute dental pain in children

Benzocaine products should not be used in children under two years old, and their use in older children should be sparing. A child with a toothache bad enough to wake them up at night or interfere with eating needs a dental visit, not more doses of pain relievers.

Baby teeth with cavities sometimes get dismissed as unimportant because “they’ll fall out anyway.” Infections in baby teeth can damage the permanent teeth developing underneath, spread to surrounding tissue, and cause the same dangerous complications as infections in adults. A child’s dental infection deserves the same urgency as an adult’s.

Why Delaying Treatment Makes Everything Harder

Toothaches are unusual among common medical complaints in that the underlying problem almost never gets better on its own. A cavity does not heal. An infected pulp does not recover. An abscess does not permanently resolve because the pain subsides for a few days. What often happens is that the nerve inside the tooth dies, the acute pain stops, and the person assumes the problem has gone away. Meanwhile, the infection continues spreading through the bone, eventually producing a much larger abscess, bone loss, or the kind of facial swelling that lands people in the emergency room.

Early treatment is also less expensive and less invasive. A tooth that could have been saved with a filling six months ago may now need a root canal and a crown. A tooth that could have been saved with a root canal two years ago may now need extraction and an implant. The financial incentive to act early is substantial.

For people without dental insurance or the ability to pay for private dental care, community health centers, dental schools, and some hospital emergency departments can provide acute treatment. An emergency room will typically prescribe pain medication and antibiotics if there are signs of spreading infection, but they cannot perform the definitive dental treatment that actually resolves the problem. That still requires a dentist.

Historical Perspective on Treating Tooth Pain

Modern dental care is easy to take for granted until you consider what people used to do. For centuries, arsenic-containing compounds were applied directly to painful teeth to kill the nerve and stop the pain. Traditional Chinese medicine used arsenolite, realgar, and orpiment for exactly this purpose, destroying the dental pulp to relieve toothache caused by decay. Arsenic trioxide eventually made it into modern endodontics as a pulp-devitalizing agent, but its use has been largely abandoned worldwide due to its extreme toxicity, risk of severe tissue death extending well beyond the target tooth, and potential systemic poisoning.

22PubMed Central. The evolution of arsenic-containing traditional Chinese medicine prescriptions for treatment of toothache due to tooth decay

The progression from arsenic paste to modern root canal therapy is a useful reminder that the goal has always been the same: eliminate the source of pain inside the tooth. We have just gotten dramatically better at doing it without poisoning the patient in the process.