Amoxicillin for Toothache: Does It Help? What to Do Now
Medically Reviewed by Dr. Pedro Yelamo Vera, MD
Licensed Physician No. 484814280 · Official Medical College of Bizkaia (Spain)Last reviewed: 31 October 2026
Amoxicillin for toothache rarely helps: the pain comes from the tooth, and a dentist treats it. What eases the pain now and which signs need urgent care.
You don't have to figure this out alone
Dr. Pedro Yelamo Vera is an independent, bilingual GP licensed in Spain. Book a 15-minute video consultation in English or Spanish for €50, with a private electronic prescription issued under Spanish law when clinically appropriate.
Usually, no. Amoxicillin for toothache does not ease the pain on its own. Most toothache comes from an inflamed nerve or an infection inside the tooth, and only a dentist can fix that. Antibiotics help only when an infection is spreading, with facial swelling or fever. Until you see a dentist, simple painkillers and soft food are the best help.
- Antibiotics do not treat the pain of most toothaches. A dentist treats the cause: a filling, a root canal, draining an abscess or taking the tooth out.
- Dental guidelines in the UK and the US advise antibiotics only for spreading infection or signs in the whole body, such as fever.
- Paracetamol or ibuprofen, warm salt-water rinses for adults and soft food help while you wait.
- See a dentist if the pain lasts more than two days, or with fever, a swollen face or jaw, or a bad taste.
- Swelling near the eye or in the neck, or trouble breathing, swallowing or opening your mouth, is an emergency.
Dr. Pedro Yelamo Vera is a GP licensed in Spain (Colegiado No. 484814280).
For a medical emergency, call 112 or go to the nearest local emergency department. Do not wait for a video consultation or an online reply.
Does amoxicillin help toothache?
For most toothaches, it does not. The pain usually comes from the soft centre of the tooth, the pulp. Decay or a crack lets bacteria in and the pulp swells inside a hard shell. Antibiotics cannot reach or fix that well.
A Cochrane review looked at antibiotics for this kind of pain (irreversible pulpitis). People given penicillin had the same pain scores as people given a dummy pill. They also used about the same number of painkillers. The evidence was limited, based on one small trial.
In 2019 the American Dental Association reviewed the evidence. Its panel advised against antibiotics in most cases of dental pain and swelling in healthy adults. It found the benefit likely tiny and the harms potentially large. Dental treatment came first in every case.
So what actually treats toothache?
A dentist treats the cause. Depending on what they find, that may be:
- A filling for decay or a lost or broken filling.
- Root canal treatment (endodoncia), which removes the inflamed or dead pulp and saves the tooth.
- Draining an abscess under local anaesthetic.
- Taking the tooth out (extracción) when it cannot be saved.
The NHS is clear that a dental abscess needs urgent dental treatment and will not go away on its own. Antibiotics may sometimes be given as well, but they are not a replacement for the dentist.
When are antibiotics needed for a tooth infection?
Scottish dental prescribing guidance (SDCEP) says antibiotics are needed only for spreading infection or signs in the whole body. Examples are:
- Swelling spreading into the face, cheek or jaw.
- Red, hot, spreading skin over the area (cellulitis).
- Swollen glands in the neck.
- A fever or feeling generally unwell.
Even then, the dentist still needs to drain the pus or treat the tooth. An infection kept inside the tooth or around its root does not need antibiotics. People with a weak immune system are assessed differently, so tell the dentist or doctor if that applies to you.
Why not just take antibiotics to be safe?
Because they carry real risks with little gain. They can cause diarrhoea, thrush and allergic reactions. Each course also helps bacteria become resistant, so antibiotics work less well when you truly need them. And a course can hide the problem for a while, so the tooth gets worse while you wait.
In Spain, antibiotics are prescription-only. Read more in our guide to antibiotics and prescription rules in Spain.
Toothache and not sure if it needs a dentist today, or antibiotics at all?
You can book a video visit with a GP licensed in Spain, in English or Spanish. He checks for signs of spreading infection, helps with pain relief and tells you how urgently you need a dentist.
What can I do for toothache until I see a dentist?
These steps come from the NHS toothache advice:
- Painkillers. Paracetamol or ibuprofen can help. A pharmacist (farmacéutico) can tell you which suits you.
- Salt water. Adults can rinse with warm salt water and spit it out. Children should not do this.
- Soft food. Chew on the other side. Avoid very hot, cold or sweet food.
- Gentle cleaning. Use a soft brush and do not floss right around the sore tooth.
- A numbing mouth gel from the pharmacy may help for a while.
- Do not smoke. It makes dental problems worse.
Children under 16 should not take aspirin. Do not put aspirin on the gum either: it does not ease the pain there and can damage the gum. Taking more painkiller than the label says will not work better and can be dangerous.
Can I take ibuprofen with Enantyum or other anti-inflammatories?
No, not together. The NHS advises against taking ibuprofen at the same time as other anti-inflammatories (NSAIDs), such as naproxen or aspirin. Enantyum (dexketoprofen) and naproxen are in that same family. Ibuprofen may also not suit you with stomach ulcers, asthma, or heart, liver or kidney disease. In pregnancy, avoid it unless a doctor or pharmacist advises it.
If a dentist or doctor does prescribe amoxicillin, keep taking the painkiller you need. The antibiotic does not replace pain relief. Ask the pharmacist which painkiller suits you alongside it.
When should I see a dentist for toothache?
The NHS advises booking a dentist (dentista) if:
- The pain lasts more than two days.
- Painkillers do not ease it.
- You have a high temperature, pain when biting, red gums or a bad taste in your mouth.
- Your cheek or jaw is swollen.
With a swollen face or jaw and a fever, do not wait: see a dentist or a doctor today. A dental abscess can spread.
When is a toothache an emergency?
Call 112 or go to urgencias if you have toothache and:
- The area around your eye, or your neck, is swollen.
- Swelling in your mouth or neck makes it hard to breathe, swallow or speak.
- You cannot open your mouth properly.
- You have a swollen or painful eye, or sudden changes in your sight.
- You feel very unwell, confused or faint, with fever.
Do not drive yourself. A spreading dental infection can block the airway or cause sepsis, and it needs hospital care.
Pain in the jaw, neck or teeth is not always dental. MedlinePlus lists a heart attack among the causes. Call 112 if it comes with chest pain or pressure, breathlessness, a cold sweat or feeling sick.
Talking it through with a doctor by video
Dr. Yelamo is a GP licensed in Spain. He sees adults, children and pregnant patients by video, every day from 07:30 to 20:30 (Spain time). A GP cannot fill, drain or remove a tooth. In the visit he will:
- Ask about the pain, fever and any swelling, and look at your face and mouth on camera.
- Check for signs of a spreading infection that need a dentist or hospital today.
- Help you choose safe pain relief for your health, medicines and any pregnancy.
- Explain whether an antibiotic would help in your case, and why it often would not.
He does not promise any test or prescription before the visit. Where clinically appropriate, following a genuine evaluation. Treatment and prescriptions are issued solely at the doctor's discretion based on evidence-based clinical guidelines.
A prescription is never guaranteed: it is issued only where clinically appropriate after a genuine evaluation, as a private electronic prescription under Spanish law. This service is for urgent, non-emergency care. In an emergency, call 112.
See how the Urgent Care video visit works. It lasts 15 minutes and costs €50.
This guide is general information. It does not replace a visit to your dentist or doctor.
Frequently asked questions
Does amoxicillin stop toothache?
Usually not. Most toothache comes from an inflamed nerve inside the tooth. A Cochrane review found antibiotics gave no clear pain relief. A dentist treats the cause.
When does a tooth infection need antibiotics?
When the infection is spreading, for example with facial swelling, swollen neck glands or fever. Even then, the dentist still needs to drain it or treat the tooth.
Can I take amoxicillin and paracetamol for toothache?
If a dentist or doctor has prescribed amoxicillin, you still need pain relief, because the antibiotic does not ease the pain. Ask your pharmacist which painkiller suits you alongside it.
Can I take ibuprofen and Enantyum together?
No. Both are anti-inflammatories (NSAIDs). The NHS advises not to take ibuprofen at the same time as other NSAIDs.
Will a dental abscess go away on its own?
No. The NHS says a dental abscess needs urgent dental treatment and will not go away on its own, even if the pain eases for a while.
When is toothache an emergency?
Call 112 or go to urgencias if the area around your eye or your neck swells, or if you struggle to breathe, swallow, speak or open your mouth.
Sources
- NHS: Toothache
- NHS: Dental abscess
- SDCEP Drug Prescribing for Dentistry: Dental abscess
- American Dental Association guideline on antibiotics for dental pain and swelling (JADA, 2019)
- Cochrane review: Antibiotic use for irreversible pulpitis
Related guides
Medical Citations & Sources
This content is written and reviewed by a licensed physician with reference to the following official health authorities.
