Teething: Timeline, Symptoms, and What Actually Helps

"Is This Something or Nothing?"

She's running a fever / has a rash / is coughing weirdly. You don't know if this is an ER trip, a doctor visit, or a watch-and-wait. You're tired of the binary the internet offers.

Most childhood symptoms are not emergencies. A small but real subset are. Knowing which is which without panicking either direction is the parenting skill that takes years to build. Here is the sorting guide.

Teething is one of the most-Googled baby topics in the world — and one of the most misunderstood. The internet is full of myths (amber necklaces release succinic acid! teething causes diarrhea! all you need is homeopathic tablets!) that range from ineffective to genuinely dangerous. Let's separate what the research actually shows from what grandma told you, and give you a clear, evidence-based plan for getting through it.

When Does Teething Start?

Most babies get their first tooth between 4 and 7 months, but the range is enormous. Some babies are born with teeth (natal teeth — about 1 in 2,000 births), while others don't get their first tooth until after their first birthday. Both extremes are normal. Late teething is almost never a sign of a problem — it's primarily genetic. If your parents or your partner's parents were late teethers, your baby probably will be too.

The typical eruption order follows a predictable pattern: the lower central incisors (bottom front two) come first, followed by the upper central incisors, then the lateral incisors, first molars, canines, and finally the second molars. By age 3, most children have all 20 primary ("baby") teeth. These teeth will eventually be replaced by 32 permanent teeth starting around age 6.

Real Teething Symptoms vs. Myths

What Teething Actually Causes

A 2016 systematic review in Pediatrics (Massignan et al.) analyzed 16 studies involving over 3,500 teething episodes and found that the following symptoms were significantly associated with tooth eruption: gum irritation and swelling (the gum directly over the emerging tooth), increased drooling (beginning weeks before the tooth appears), desire to bite and gnaw on objects, mild irritability and fussiness, and mild sleep disruption (especially for a day or two around eruption). These symptoms typically begin 2 to 3 days before the tooth breaks through the gum and resolve within a day or two after.

What Teething Does NOT Cause

The same systematic review found no significant association between teething and fever above 100.4°F (38°C), diarrhea, rash (other than mild drool rash around the chin), vomiting, cough, or congestion. These are among the most persistent myths in pediatrics, and they are dangerous because parents attribute genuine illness to "just teething" and delay seeking medical care.

Why the myth persists: teething begins around 6 months — the exact same time that maternal antibodies from pregnancy begin to wane and babies start putting everything in their mouths, dramatically increasing their exposure to viruses. So the timing of increased illness and teething overlap perfectly, creating a false association. If your baby has a rectal temperature above 100.4°F, see your pediatrician. It's not the teeth. For a guide on when symptoms need medical attention, see our ER guide.

What Actually Relieves Teething Pain

The Evidence-Based Toolkit

Cold pressure is the gold standard. A chilled (not frozen) teething ring, a cold wet washcloth, or a refrigerated pacifier provides both the counter-pressure and the numbing cold that relieves gum pain most effectively. Freeze a damp washcloth for 15 minutes, then let your baby gnaw on it — the texture plus the cold is extremely effective. Mesh feeders filled with frozen fruit (banana, mango) work well for babies 6 months and older who are eating solids.

Gum massage. Wash your hands and firmly rub your baby's gums with a clean finger. The pressure counteracts the pressure of the tooth pushing through from below. Many babies find this immediately soothing — you'll see them lean into your finger.

Pain medication when needed. For significant pain (refusing to eat, persistent crying, disrupted sleep for more than a night or two), the AAP and ADA endorse infant acetaminophen (Tylenol) for babies 3 months and older, and infant ibuprofen (Advil/Motrin) for babies 6 months and older. Always dose by weight, not age, and follow the label. Ibuprofen is generally more effective for teething because it reduces both pain and inflammation. Give it 30 minutes before bed if nighttime is the worst. For more on sleep during this period, extra comfort and responsive presence will get you through the disrupted nights.

Tip: Track which teeth are coming in and when in Village AI — you'll start to see your baby's pattern. Some babies teethe in clusters (multiple teeth at once), and knowing that the canines and second molars are the most painful helps you prepare for the harder stretches ahead.

What to AVOID: FDA Warnings

Benzocaine Gels (Baby Orajel)

In 2018, the FDA issued a formal warning against using benzocaine products for children under 2. Benzocaine can cause methemoglobinemia — a condition where the blood's ability to carry oxygen drops dramatically. It can occur after just one application and can be fatal. The FDA's warning was clear: do not use these products on infants or toddlers, period. Baby Orajel has been reformulated without benzocaine in some versions, but the safest approach is to avoid numbing gels entirely.

Homeopathic Teething Tablets and Gels

The FDA has also warned against homeopathic teething products (including Hyland's teething tablets, which were recalled). Testing found inconsistent and sometimes dangerous levels of belladonna (a toxic substance) in these products. The FDA received reports of seizures, difficulty breathing, and lethargy in babies who used them. Homeopathic products are not FDA-regulated for safety or efficacy.

Amber Teething Necklaces

Amber necklaces are marketed with the claim that body heat releases succinic acid from the amber, which is then absorbed through the skin to reduce inflammation. There is zero scientific evidence supporting this mechanism — amber doesn't release succinic acid at body temperature, and succinic acid is not an analgesic. What amber necklaces DO pose is a very real choking and strangulation risk. The AAP, the Canadian Paediatric Society, and the FDA have all warned against them.

The Tough Teeth: Canines and Second Molars

Not all teeth hurt equally. The incisors (front teeth) are thin and sharp — they cut through the gum relatively easily. The first molars are larger and can cause more discomfort. But the canines (around 16 to 23 months) and especially the second molars (around 23 to 33 months) are the worst. The second molars are the largest baby teeth, pushing through a thick area of gum in the back of the mouth where the tissue is tougher.

During these eruptions, you may see more intense fussiness, difficulty eating (especially hard or crunchy foods), increased night waking, and sometimes refusal of the breast or bottle because the sucking creates pressure in the mouth. This is temporary — usually the worst of it lasts 3 to 5 days. Extra comfort, cold foods, and pain medication as needed will get you through. If your toddler's eating is disrupted, see our picky eating guide for strategies.

Drool Rash: Prevention and Treatment

The constant drooling that accompanies teething can cause a red, bumpy, irritated rash on the chin, cheeks, and neck. This isn't caused by the teething itself — it's caused by moisture sitting on sensitive skin. Prevention is more effective than treatment: gently pat (don't rub) the drool dry frequently, apply a thin layer of petroleum jelly or a barrier cream (like Aquaphor) to the chin and cheeks before naps and bedtime, and keep a bib on during the day to absorb drool before it reaches the skin. If a rash develops, the same barrier cream approach helps it heal. If it becomes cracked, weeping, or doesn't improve in a few days, see your pediatrician — it may have become infected. For more on baby skin care, see our newborn skin guide.

When to See the Dentist

The AAP and ADA both recommend a first dental visit by age 1 or within 6 months of the first tooth — whichever comes first. This isn't about cavities (though they can start early); it's about establishing a dental home, getting guidance on cleaning and fluoride, and catching any issues early. Once teeth are in, clean them twice daily with a rice-grain-sized smear of fluoride toothpaste on a soft baby toothbrush.