The fastest way to reduce tooth pain at home is to take an over-the-counter pain reliever and rinse with warm salt water. These two steps handle both inflammation and bacteria while you figure out what’s causing the problem. But the right long-term fix depends entirely on why your tooth hurts, so understanding the cause matters just as much as managing the pain.
Quick Relief: What to Do Right Now
Start with a salt water rinse. Mix 1 teaspoon of salt into 8 ounces of warm water and swish it around your mouth for 15 to 30 seconds, then spit. This draws fluid out of swollen gum tissue, reduces bacteria around the painful area, and can be repeated several times a day. It won’t fix the underlying problem, but it often takes the edge off within minutes.
For pain medication, combining ibuprofen and acetaminophen works better for dental pain than either one alone. The two drugs target pain through different pathways, and a combination tablet (250 mg acetaminophen plus 125 mg ibuprofen) can be taken every 8 hours, up to 6 tablets per day. If you don’t have a combination product, you can take standard doses of each separately. Ibuprofen reduces inflammation directly at the tooth, while acetaminophen dials down pain signaling in the brain.
A cold compress on the outside of your cheek, 15 minutes on and 15 minutes off, can numb the area and reduce swelling. Avoid placing ice or aspirin directly against the tooth or gums.
Why Toothaches Get Worse at Night
If your tooth throbs more when you lie down, that’s not your imagination. The nerve and blood vessels inside your tooth sit in a tiny rigid chamber called the pulp. When that tissue is inflamed, even a small increase in blood flow creates pressure that has nowhere to go, and that pressure directly triggers pain receptors. Lying flat sends more blood to your head, which engorges those already-swollen vessels.
Sleeping with your head elevated on an extra pillow or two reduces the gravitational pull of blood toward your jaw. Your heart has to pump harder against gravity to reach the higher position, which naturally lowers blood pressure in your head and neck. That small pressure drop inside the inflamed tooth can make the difference between a dull ache and the intense throbbing that keeps you awake.
What’s Actually Causing the Pain
Tooth pain has a handful of common causes, and each one feels a little different. Paying attention to when the pain hits and how long it lasts helps you (and your dentist) narrow it down quickly.
Sensitivity Without Damage
If your teeth sting briefly when you drink something cold or eat something sweet, but the sensation disappears within a few seconds, you likely have exposed dentin or early-stage irritation of the nerve. This is the mildest form of tooth pain. A desensitizing toothpaste containing potassium nitrate can help over time. The potassium ions travel into the tiny tubes in your tooth’s surface and gradually calm the nerve fibers, reducing how strongly they react to temperature and sugar. This isn’t instant relief: clinical studies show it typically takes about four weeks of regular use for the full desensitizing effect to kick in.
A Cavity or Crack Irritating the Nerve
When sensitivity to cold, heat, or sweets lingers for more than a few seconds, the nerve tissue inside the tooth is inflamed. At this stage, the inflammation may still be reversible if a dentist removes the decay and places a filling. But once the pain starts showing up on its own (not just in response to hot or cold), or the tooth hurts when you tap on it, the nerve damage has likely become permanent. That’s the point where a root canal becomes necessary to stop the pain.
An Abscess
Untreated nerve inflammation can progress to a full infection at the root tip. An abscess often causes constant, throbbing pain that radiates into your jaw or ear, along with swelling of the gum or face. You may notice a bad taste from pus draining near the tooth. Fever, swollen neck glands, and facial swelling are signs the infection is spreading. If you develop a fever with facial swelling, or have trouble breathing or swallowing, go to an emergency room. The infection can spread into the jaw, throat, or neck and become dangerous.
Sinus Pressure Mimicking a Toothache
Pain in your upper back teeth doesn’t always mean a dental problem. The largest sinus cavities sit directly above the roots of your upper molars, and in some people the tooth roots actually extend into the sinus space. When those sinuses are inflamed from a cold, allergies, or a sinus infection, the pressure can feel identical to a toothache. A clue that sinuses are the culprit: multiple upper back teeth ache at once (rather than one specific tooth), and the pain worsens when you bend forward or lie down. Treating the sinus congestion resolves the tooth pain.
What a Dentist Will Do
The treatment depends on how far the damage has progressed, and knowing what to expect can make the visit less stressful.
For a small cavity, the dentist removes the decayed portion and fills the space with a durable filling material. This is usually a single appointment and the tooth feels normal afterward. If the cavity or a crack is larger, you may need a crown, a custom cap that fits over the entire tooth to restore its shape and protect it from breaking further. Sometimes the damage falls between those two options, in which case an inlay or onlay (a precision-fitted ceramic piece) fills the gap like a puzzle piece.
When infection has reached the nerve, a root canal removes the inflamed nerves, blood vessels, and connective tissue from inside the tooth. The hollow interior is then cleaned, disinfected, and filled. Most root canal teeth also get a crown afterward because the tooth becomes more brittle without a living nerve supply. Despite its reputation, a root canal itself is performed under local anesthesia and feels similar to getting a filling. The relief from the constant toothache is usually immediate.
Extraction is typically a last resort, reserved for teeth that are too damaged to save or infections that can’t be controlled otherwise.
Home Remedies That Help (and Ones That Don’t)
Salt water rinses, cold compresses, and head elevation are well-supported and safe to repeat. Clove oil contains a natural numbing compound and can temporarily dull pain when applied to the tooth with a cotton ball, though it tastes strong and can irritate gum tissue if overused. Peppermint tea bags, cooled and placed against the sore area, provide mild numbing as well.
What doesn’t help: placing aspirin directly on the gum (it burns the tissue), using alcohol as a mouth rinse (it irritates more than it soothes), and ignoring pain that keeps coming back. Home remedies manage symptoms while you arrange professional care. They don’t reverse cavities, heal cracked teeth, or clear infections. If your pain persists beyond a day or two, recurs regularly, or comes with swelling or fever, the tooth needs professional treatment to actually stop hurting for good.