Your Child Has a Toot Pain at Night: What to Do Until Morning

Tooth pain gets worse at night for a physical reason. Lying down increases blood flow to the head, which raises pressure inside an already inflamed tooth, and with fewer distractions the pain registers more sharply. Most of what helps is mechanical rather than medicinal. A night like this is how most dental emergencies in children begin. Here is what to do in the next hour, what to give and what never to give a child, and the signs that mean it cannot wait until morning.

Quick answer: Sit your child upright, apply a cold compress to the outside of the cheek for 15 minutes, and give a weight-appropriate dose of acetaminophen or ibuprofen. Do not use numbing gels, aspirin, or clove oil. Facial swelling, a fever, or trouble swallowing or breathing needs emergency care that night, not in the morning.

Why tooth pain intensifies after lying down

Three things change after your child lies down. Blood flow to the head increases, which raises pressure inside the pulp chamber of a tooth that is already inflamed, and since that chamber is enclosed in hard tissue the pressure has nowhere to go. Saliva production drops, so the mouth loses some of its natural buffering. And there is nothing to compete for attention. A pain that was a background nuisance at four in the afternoon becomes the only thing your child can think about at eleven at night. None of this means the problem got worse. It means the same problem is being felt more.

What to do in the next hour

Start with position. Keep your child’s head elevated rather than flat, propped on extra pillows or sleeping in a slightly reclined position, which reduces the pressure that is driving the throbbing. This does more than most parents expect and it costs nothing.

Apply cold to the outside of the cheek over the painful side, fifteen to twenty minutes on and then off, using an ice pack or a bag of frozen peas wrapped in a towel. Cold constricts the vessels in the area and dulls the nerve. Never apply heat. If there is infection present, heat encourages it to spread.

If your child is old enough to swish and spit reliably, usually around age six, a rinse with half a teaspoon of salt in a cup of warm water for thirty seconds can flush debris out of a cavity and settle inflamed gum tissue. For a younger child who will swallow it, skip this. Gently flossing on either side of the painful tooth is worth one attempt, since food wedged between two teeth is a common and instantly reversible cause of sudden pain.

Keep food and drink away from the temperature extremes and away from sugar until morning. Cold water is usually tolerated; anything hot, icy, or sweet can set off a sharp response in an exposed nerve.

Tooth Pain relief that is appropriate for a child

Acetaminophen and ibuprofen are both appropriate for dental pain in children, and ibuprofen tends to work better for it because dental pain is inflammatory. Dose by your child’s current weight rather than by age, using the syringe or cup that came with the bottle rather than a kitchen spoon, and check the package concentration since infant and children’s formulations differ. If your child has a condition or takes other medication, confirm with your pediatrician first.

Guidance from the American Academy of Pediatric Dentistry notes that alternating acetaminophen and ibuprofen is a recognized strategy for managing pain in children, and it allows lower doses of each. It also notes that acetaminophen overdose is a genuine pediatric emergency, which is why alternating should be done on your pediatrician’s instruction with a written schedule rather than improvised at two in the morning when you have lost track of what was given when.

What not to give a child for tooth pain

Four things commonly recommended for adult toothache should not be used on a child.

Benzocaine numbing gels, sold for teething and mouth pain, are contraindicated in children under two and carry a warning for older children because they can cause methemoglobinemia, a rare condition that reduces the oxygen carried in the blood and can be fatal. They also wash out of the mouth within minutes, so they do very little even where they are permitted.

Aspirin should never be given to a child or teenager for pain, because of its association with Reye’s syndrome. Aspirin placed directly against the gum, which still circulates as folk advice, causes a chemical burn of the tissue.

Clove oil is frequently recommended in adult toothache articles. Undiluted on a child’s gum it burns the mucosa, and swallowed in quantity it is toxic.

Do not place anything warm against the face and do not use a heating pad. If swelling is developing, warmth accelerates it.

Working out what is causing the pain

What is causing it changes how urgent it is. Sharp pain triggered by cold or sweet that stops within seconds usually points to a cavity that has reached the dentin. Constant throbbing that wakes your child, or pain that worsens on lying down, suggests the pulp is involved and that the tooth needs treatment rather than monitoring. Pain on biting in one specific spot can be a crack or a piece of food wedged below the gumline. A pimple-like bump on the gum, facial swelling, or a bad taste indicates infection. And pain at the very back of the mouth in a child around two or six may be a molar erupting rather than anything wrong, which resolves on its own.

When it cannot wait until morning

Some of this is a genuine emergency and cannot wait for the morning. Facial swelling, particularly swelling that is closing an eye or extending down toward the neck, needs emergency care the same night. So does fever alongside dental pain, difficulty swallowing, difficulty breathing, or a swelling that is visibly spreading. Those go to an emergency room rather than waiting for a dental office to open, because the concern is a spreading infection rather than the tooth.

Everything else can be managed overnight and seen the next day. Pain that responds to a weight-appropriate dose of pain relief, with no swelling and no fever, is uncomfortable rather than dangerous. Call in the morning rather than sitting in an emergency room, since an emergency department can manage pain and prescribe antibiotics but cannot treat the tooth itself.

One thing worth knowing: pain that disappears on its own after several bad days is not always good news. When the nerve inside a tooth dies, the pain stops, and the underlying infection continues silently. A tooth that hurt badly and then went quiet still needs to be looked at.

Frequently Asked Questions

What can I give a child for tooth pain at night?

Acetaminophen or ibuprofen, dosed by current weight rather than age, using the measuring device supplied with the bottle. Ibuprofen tends to work better for dental pain because the pain is inflammatory. Never give aspirin to a child or teenager.

Is Tylenol or Motrin better for a toothache?

Ibuprofen, the active ingredient in Motrin and Advil, generally works better for dental pain because it targets inflammation, which is what produces the pressure inside the tooth. Acetaminophen, the active ingredient in Tylenol, is a reasonable alternative if ibuprofen is not suitable for your child.

Can I use a numbing gel on my child’s gum?

No. Benzocaine gels are contraindicated under age two and carry a warning above it, because of a rare but potentially fatal blood condition. They also rinse out of the mouth within minutes, so the benefit is minimal even where use is permitted.

Should I take my child to the ER for a toothache?

Only for facial swelling, fever with the pain, difficulty swallowing or breathing, or trauma with bleeding that will not stop. An emergency department can manage pain and treat infection but cannot fix the tooth, so anything short of those signs is better handled by calling a dental office in the morning.

Why does my child’s tooth hurt more at night?

Lying down increases blood flow to the head, raising pressure inside an inflamed tooth that has no room to expand. Saliva flow also drops, and there is nothing else competing for your child’s attention. The tooth has not worsened; it is being felt more.

Call us at (201) 500-6314 and leave a message if your child is in pain overnight, and we will get back to you when the office opens. If there is facial swelling, fever, or difficulty swallowing or breathing, go to an emergency room rather than waiting. For anything that has settled by morning but is likely to return, a first visit or a check-up appointment is the place to find out what is causing it.

Dr. Sabrine Obbad, Board-Certified Pediatric Dentist, Joie Pediatric Dentistry, Ramsey, NJ