Toothache: Causes, Treatments, and Safe At-Home Relief (2025)

A sharp or lingering toothache is common—and it’s your mouth’s way of saying something needs attention. Below are the most frequent causes of tooth pain, what the symptoms can mean, how dentists treat them in the U.S., and what you can do at home for short-term relief. (This is general information, not a diagnosis. See a dentist promptly for care.)

What causes tooth pain?

• Tooth decay (cavities): Bacteria break down enamel and dentin, creating a hole that can inflame the nerve and cause pain.

• Gum disease (gingivitis/periodontitis): Buildup of plaque and tartar leads to inflamed, tender, sometimes bleeding gums and tooth soreness.

• Dental abscess: A deep infection in or around a tooth causes severe pain, swelling, and sometimes facial puffiness.

• Cracked tooth: Hairline cracks can expose the nerve—pain often spikes with biting, cold, or sweet foods.

• Wisdom teeth (erupting or impacted): Pressure, gum inflammation, and infection around the area can hurt.

• Sinus infection: Maxillary sinus congestion may “refer” pain to upper back teeth.

Toothache that radiates to the head or ear

Tooth pain spreading to the temple, jaw, or ear can signal a dental abscess or sinus infection. Seek urgent dental care—untreated infections can worsen and spread.

Common signs of a dental abscess

• Facial or neck swelling and tenderness near the affected tooth

• Fever

• Bad taste or odor in the mouth

• Trouble swallowing or opening the mouth fully

Common signs of sinus infection

• Nasal congestion with yellow/green discharge

• Headache (forehead/cheek pressure)

• Facial pressure or fullness

• Fever (sometimes)

How dentists treat tooth pain (U.S.)

• Fillings: Repair cavities and restore tooth function.

• Root canal therapy: Removes infected nerve tissue, disinfects the canal, and seals the tooth to relieve pain and save it.

• Gum therapy: Professional cleaning, scaling and root planing to remove plaque/tartar below the gumline and reduce inflammation.

• Tooth extraction: Chosen when a tooth is too damaged or infected to save.

• Antibiotics: Used only when an infection is present or spreading (e.g., abscess, cellulitis). They don’t fix the source—definitive dental treatment is still required.

• Pain relievers: Over-the-counter ibuprofen (Advil®, Motrin®) or acetaminophen (Tylenol®) can help. Follow label directions and ask a clinician if you have medical conditions, are pregnant, or take blood thinners.

Treating an abscess vs. sinus infection

Dental abscess

• Drainage of pus when indicated

• Root canal therapy to save the tooth or extraction if the tooth can’t be saved

• Antibiotics when there is systemic involvement or spreading infection

• Pain control and close follow-up

Sinus infection

• OTC pain relievers (ibuprofen or acetaminophen)

• Decongestants (as appropriate), intranasal corticosteroid sprays, and saline nasal rinses for congestion

• Prescription antibiotics only if your clinician suspects bacterial sinusitis

Short-term, at-home relief (does not replace a dentist visit)

• Warm salt-water rinses several times daily to soothe tissues.

• Cold compress on the cheek for 10–20 minutes at a time to reduce swelling.

• Floss gently to remove trapped food that can worsen irritation.

• Soft, cool foods; avoid very hot, acidic, or sugary foods and beverages.

• Clove oil (eugenol) may help numb briefly—use sparingly on a cotton swab and avoid contact with gums for prolonged periods to prevent irritation.

• Avoid harmful myths: Do not place aspirin on the tooth or gums (it can burn tissues). Be cautious with raw garlic on gums—it can irritate or burn.

When to go to urgent care or the ER

Seek immediate care (call 911 in the U.S. for emergencies) if you have:

• Fever with facial swelling, spreading redness, or worsening pain

• Difficulty breathing, swallowing, or opening the mouth

• Swelling around the eye, vision changes, or severe headache

• A weakened immune system (e.g., chemotherapy, transplants, uncontrolled diabetes)

Medical disclaimer: The content on this page is for general information and guidance only and is not medical advice or a treatment recommendation. Your situation is unique; always consult your dentist/oral surgeon or seek urgent care if you have concerning symptoms.