Teething: Timeline, Symptoms, and What Actually Helps

Your baby is drooling everywhere, gnawing on everything, and screaming at 3 AM. Congratulations — they're probably teething.

Teething is one of the most Googled baby topics, and one of the most surrounded by myths. Here's what the research actually says.

When teething starts

Most babies get their first tooth around 6 months, but the normal range is 4-12 months. Some babies are born with teeth (rare but harmless). If no teeth by 12 months, mention it to your pediatrician, but it's usually just their timeline.

Typical order: lower central incisors first, then upper central incisors, lateral incisors, first molars, canines, and second molars. All 20 primary teeth are in by age 3.

Real symptoms vs. myths

Massignan et al.'s 2016 meta-analysis in Pediatrics reviewed 16 studies and nearly 3,500 tooth eruptions. They found:

Confirmed symptoms: Gum irritation and swelling, increased drooling, irritability, slight temperature rise (but NOT a true fever above 100.4°F), desire to bite and chew, disrupted sleep.

NOT caused by teething (despite popular belief): High fever, diarrhea, body rashes, vomiting, congestion. If your baby has these, don't blame teething — see your pediatrician. Attributing illness to teething can delay treatment.

Teething discomfort peaks 1-2 days before eruption and the day of, then resolves quickly.

Related: Growth Spurts in Babies | When Babies Sleep Through the Night

What actually helps

Cold pressure. A chilled (not frozen) teething ring, cold wet washcloth for gnawing, or your clean finger gently massaging gums. Cold numbs naturally; pressure provides counter-stimulation.

Pain relief when needed. Infant acetaminophen (3mo+) or ibuprofen (6mo+), dosed by weight. Reserve for rough nights and worst episodes, not routine use.

Extra comfort. Sometimes what looks like teething pain is a baby who needs more holding. Extra cuddles don't spoil babies — they help them co-regulate.

What to avoid (FDA warnings)

Benzocaine gels (Orajel): FDA warning for children under 2 due to risk of methemoglobinemia — a rare but potentially fatal drop in blood oxygen.

Homeopathic teething tablets: FDA investigated seizures and adverse events linked to belladonna in these products. Unregulated and unsafe.

Amber teething necklaces: Zero scientific evidence they work. Pose strangulation and choking hazards. AAP recommends against them.

Related: Baby Rash Guide | Fever in Kids Guide

The reassurance

Teething is temporary. Each tooth causes 1-3 days of peak discomfort, not weeks. By age 3, all 20 teeth are in. Until then: cold things, occasional Tylenol, patience.