Fever & Teething | Tribeca, NYC
Fever and Teething: What Teething Really Causes, and What It Does Not
In short: Teething can bring drooling, chewing on everything, sore gums, fussiness, and at most a slight rise in temperature. It does not cause a true fever. A temperature of 100.4 degrees Fahrenheit, 38 degrees Celsius, or higher in a baby or toddler has another cause, most often a virus, and deserves its own look. Knowing the difference matters, because blaming a real fever on teeth can delay care a small child needs.
Teething gets blamed for almost everything that happens between four months and two years: fevers, rashes, diarrhea, bad nights, and ear pulling have all been laid at its feet for generations. The belief is understandable. Teething covers a long stretch of babyhood, it is visibly uncomfortable, and it coincides with the age when babies start catching every virus in circulation. When a tooth and a fever arrive together, the tooth is the obvious suspect, and sometimes it is even partly involved in the misery, just not in the temperature.
The evidence, though, is consistent: studies that follow babies daily through teething find drooling, gum rubbing, chewing, irritability, and slightly disturbed sleep clustered around the days a tooth erupts, with at most a modest temperature elevation that stays below the fever line. This guide separates the myth from the findings, explains why fevers so often coincide with teeth anyway, covers the comfort measures that genuinely help, and states plainly which popular teething products are unsafe.
What teething actually causes
In the day or two before a tooth comes through, and on the day itself, babies commonly drool heavily, chew and gnaw on anything within reach, rub their gums and ears, and get fussier than usual. Appetite for solids may dip because the gum is tender, sleep may fragment, and a mild rash can appear around the mouth and chin from the constant drool sitting on the skin. A slight temperature elevation, a warm baby in the high ninety-nines, can accompany the busiest eruption days and still stay within what teething explains.
The pattern is short-lived. Genuine teething symptoms build over a few days around an eruption and then fade once the tooth is through, even though another tooth will restart the cycle soon enough in a busy teething season. Symptoms that are severe, that last well beyond a few days, or that keep escalating do not fit the teething pattern, however convenient the explanation would be. Teething is a background process of babyhood; it is uncomfortable, it is real, and it is rarely the whole story when a baby is properly unwell.
A true fever is not from teething
The line is clear: fever means a temperature of 100.4 degrees Fahrenheit, 38 degrees Celsius, or above, and teething does not push a baby's temperature across it. When researchers measure teething babies' temperatures daily, the readings associated with eruption stay below that threshold. So a baby with a temperature of 101 or 102 who is also cutting a tooth has two things happening at once, and the fever is the one that needs an explanation. Treating it as teething risks missing what is actually wrong.
Why the coincidence is so common is no mystery. The teething months are precisely when a baby's inherited immunity from their mother fades and when babies begin mouthing objects, attending gatherings, and meeting other children, so first viruses arrive in waves during exactly the same window. Ear infections, roseola, colds, stomach bugs, and urinary infections all make their debuts in this period. Some, like roseola, end as the fever breaks with a rash, which then gets credited to the tooth that happened to erupt that week.
- Teething: drooling, chewing, fussiness, sore and swollen gums
- Teething may bring a slight temperature rise under 100.4
- A temperature of 100.4 degrees or higher is a true fever
- True fever in a teething baby has another cause, usually viral
- Babies under three months with any fever need prompt medical care
Comfort measures that genuinely help
For sore gums, pressure and cold are the reliable pair. A clean finger to gnaw on gives a baby the counter-pressure they are seeking. A teething ring chilled in the refrigerator, not frozen solid, soothes the gum surface; a clean washcloth dampened and chilled works the same way and is easy to grip. Offer these before feeds if sore gums are interrupting eating, and expect the drool bib to earn its keep. What helps is simple, physical, and repeatable all day.
When fussiness and soreness are clearly winning, infant pain relief is appropriate: acetaminophen or, for babies over six months, ibuprofen, dosed strictly by your child's weight following the package directions or your pediatrician's guidance. Weight-based dosing matters because babies grow fast and last month's dose is already out of date. If you find yourself dosing for more than a day or two, or the distress seems out of proportion, that is a reason to check in with the pediatrician rather than continue.
Products to skip: gels and amber necklaces
Numbing teething gels are not recommended for infants. Standard guidance from the FDA and the AAP advises against benzocaine gels in young children: the numbing washes off the gum quickly, so relief is brief, and benzocaine carries a rare but serious risk of a blood oxygen problem called methemoglobinemia in babies. Homeopathic teething tablets have also drawn FDA warnings over inconsistent ingredients. A product that promises to numb a baby's mouth is solving a problem that a chilled teether solves more safely.
Amber teething necklaces deserve the same plain statement. There is no evidence the amber releases anything that relieves pain, and a necklace on a baby is a strangulation hazard, while a broken strand of beads is a choking hazard. Both the FDA and the AAP advise against them. If a necklace has sentimental value, it belongs in a drawer, not on a sleeping or unsupervised baby. Bracelets and anklets carry the same risks in miniature and get the same answer from us.
When to call the pediatrician, and when the dentist
Call the pediatrician for the fever itself: any fever in a baby under three months is urgent, and at any age, a fever with a rash, unusual sleepiness or difficulty waking, poor feeding, signs of dehydration such as far fewer wet diapers, trouble breathing, or a fever lasting more than a couple of days all need medical evaluation. Ear pulling with fever, inconsolable crying, vomiting, or diarrhea point the same way. The pediatrician owns the fever workup; we would never want teething used as the reason to wait on one.
The dentist's territory is the mouth itself. Call us if you see a blister or swelling on the gum that does not settle, a bluish bump over an erupting tooth that keeps growing, a tooth erupting far off pattern or not appearing long after its partner, or sores in the mouth that make feeding hard. A small blue-purple cushion over an incoming tooth, called an eruption hematoma, usually resolves as the tooth comes through, but we are glad to look and confirm that is all it is.
How we handle teething questions at TDS 4 Kids
At Tribeca Dental Studio 4 Kids, teething comes up at nearly every baby visit, and our role is part guide, part myth removal. We show you which teeth are on their way, what the gums should look like as they arrive, and which symptoms fit teething and which should go to the pediatrician instead. We will always steer you toward the pediatrician for a true fever, the same day, because that hand-off is the safe one and we would rather be the office that sent you early than the one that reassured you wrongly.
For the teething itself, we keep the plan safe and simple: cold, pressure, cuddles, and weight-dosed pain relief when needed, with gels and necklaces left off the list. If anything in your baby's mouth looks wrong to you, a look is quick and babies are always welcome here. Call us at +1 212-561-5303 to book. We are open Monday to Friday 8 AM to 6 PM and Saturday 9 AM to 4 PM, with select Sundays.
Questions parents ask us
01Can teething cause a fever of 102?
No. Research following babies through eruption finds teething raises temperature only slightly, staying below the fever threshold of 100.4 degrees. A temperature of 102 has another cause, most commonly a virus or an ear infection arriving in the same busy months. Treat it as a fever in its own right: call the pediatrician for guidance, especially for babies under a year old.
02How long do teething symptoms last per tooth?
Symptoms usually build over the few days around eruption, peak as the tooth breaks through, and ease once it is in. A common pattern researchers describe is heightened fussiness, drooling, and chewing across roughly an eight-day window centered on the eruption day. Misery that runs much longer than that, or keeps intensifying, does not fit teething well and deserves a pediatric check.
03Are teething gels safe for my baby?
We advise against them, following FDA and AAP guidance. Benzocaine gels wash off the gum quickly, giving brief relief at best, and carry a rare but serious risk of methemoglobinemia, a blood oxygen problem, in infants. Homeopathic teething tablets have also been flagged by the FDA. A chilled teether or a clean finger gives sore gums what they actually want, pressure and cold, without the risk.
04Do amber teething necklaces work?
There is no evidence that amber releases anything that eases teething pain, and the necklace itself introduces real danger: strangulation from the cord and choking if beads scatter. The FDA and AAP both advise against teething jewelry for babies. If you already own one, retire it to a drawer. Comfort for teething comes from cold, pressure, and, when needed, weight-dosed pain relief discussed with your pediatrician.
05My baby has a blue bump where a tooth is coming in. What is it?
It is most likely an eruption hematoma, a small collection of blood under the gum over an erupting tooth, which looks blue or purple and feels like a soft cushion. These usually resolve on their own as the tooth comes through, needing no treatment. If it grows quickly, looks infected, or the tooth stalls for weeks, come in and we will examine it and confirm the diagnosis.
06When should a feverish baby be seen urgently?
Any baby under three months with a temperature of 100.4 degrees or higher needs urgent medical care. At any age, seek care promptly for fever with difficulty breathing, a rash, unusual drowsiness or difficulty waking, inconsolable crying, poor feeding, or signs of dehydration like very few wet diapers. When in doubt, call the pediatrician or an urgent line rather than waiting to see whether a tooth appears.
Related guides for parents
Related care at TDS 4 Kids
Visit us in Tribeca
Tribeca Dental Studio 4 Kids is at 54 Warren St, New York, NY 10007 — (212) 561-5303. We are open Monday–Friday 8 AM–6 PM and Saturday 9 AM–4 PM, with select Sundays. Families visit us from Tribeca, Battery Park City, the Financial District, SoHo, Greenwich Village, the West Village, the East Village, Lower Manhattan, the Meatpacking District, and Hudson Yards.