Colic affects up to 1 in 4 newborns, and if you’re reading this, you’re probably exhausted and desperate for something that works. The good news: colic is temporary, and several techniques can genuinely reduce your baby’s crying. It typically starts late in the first month of life, peaks around 6 weeks, and fades after 3 to 4 months. That timeline feels endless at 2 a.m., but it helps to know there’s a finish line.
What Counts as Colic
Colic is defined by the “rule of threes”: crying more than 3 hours a day, more than 3 days a week, for at least 3 weeks. The key distinction is that a colicky baby is otherwise healthy, growing normally, and well-fed. If your baby is gaining weight on track and has no fever or signs of illness, you’re likely dealing with colic rather than something else. That said, some conditions mimic colic, and it’s worth knowing the differences (more on that below).
The 5 S’s: A System That Works
Pediatrician Harvey Karp popularized a five-step method designed to recreate the womb environment. These techniques work best when used together, layered one on top of the other until your baby calms. The idea is simple: your baby spent nine months in a tight, warm, noisy, rocking space, and the outside world is a shock to the system.
Swaddling
Wrap your baby snugly in a blanket with arms at their sides. This mimics the tight containment of the womb, which provides warmth and security. A good swaddle also prevents the startle reflex from waking or agitating your baby further. Use a thin cotton or muslin blanket to avoid overheating, and stop swaddling once your baby starts showing signs of rolling over.
Side or Stomach Position
Hold your baby on their left side or stomach while they’re in your arms. This position can help with digestion and creates a womb-like sensation. The “football hold” works well here: place one hand under your baby’s tummy and between their legs, then carry them face-down against your forearm, close to your chest. The gentle pressure on the abdomen often provides relief. Important: this position is only for holding, never for sleep. Always place your baby on their back to sleep.
Shushing
A loud, sustained “shhhh” near your baby’s ear imitates the sound of blood rushing through the placenta and uterus. Inside the womb, it’s surprisingly loud, roughly the volume of a vacuum cleaner. White noise machines, a running hair dryer, or a dedicated shushing app can save your voice. The sound needs to be loud enough to compete with the crying, then you can lower the volume as your baby settles.
Swinging or Swaying
Small, rhythmic movements remind your baby of the constant motion they felt in the womb. Support the head and neck, then gently sway, bounce on an exercise ball, or rock in a chair. The motion should be small and quick, not big and slow. Think of the jiggling movement of walking rather than the wide arc of a playground swing.
Sucking
Offer a pacifier, a clean finger, or the breast. Sucking is a powerful calming reflex, and babies find comfort in it even when they’re not hungry. A baby physically cannot cry and suck at the same time, so this step often seals the deal after the other four have started to take effect.
Other Physical Comfort Techniques
Beyond the 5 S’s, several hands-on approaches can help. Warm baths relax tense muscles and change the sensory environment enough to interrupt a crying spell. Skin-to-skin contact, with your baby in just a diaper against your bare chest, regulates their heart rate and temperature. Gentle bicycle motions with your baby’s legs (laying them on their back and slowly pedaling their knees toward their belly) can help move trapped gas through the digestive system.
Some parents find that a car ride or stroller walk works when nothing else does. The combination of vibration, white noise, and motion hits several calming triggers at once.
Probiotics: Promising for Breastfed Babies
A specific probiotic strain called Lactobacillus reuteri DSM 17938 has shown real results in clinical trials. In a randomized, placebo-controlled study published by the American Academy of Pediatrics, exclusively breastfed colicky infants given this probiotic daily for 21 days showed significant improvement in symptoms. The results were favorable enough that some pediatricians now recommend it as a first-line option for breastfed babies with colic. The evidence is weaker for formula-fed infants, so talk to your pediatrician about whether it’s a good fit.
Skip the Gas Drops
Simethicone drops (sold under various brand names as “gas relief” for infants) are one of the most commonly purchased colic remedies, but the evidence doesn’t support them. A systematic review in BMJ Open that analyzed multiple studies and clinical guidelines found moderate to low quality evidence showing no benefit. Several reviews concluded that simethicone either made no difference or actually worsened symptoms. Clinical guidelines from multiple countries recommend against using it. Save your money.
When It Might Not Be Colic
Colic, cow’s milk protein allergy, and reflux share overlapping symptoms like fussiness, stomach pain, and irritability, which makes it genuinely hard to tell them apart. The clearest differentiator is that a baby with colic still thrives, grows, and gains weight normally.
Watch for these signs that point toward cow’s milk protein allergy instead of colic: vomiting (not just spit-up), diarrhea, skin rashes, wheezing or coughing, and slow weight gain. If you’re breastfeeding and suspect an allergy, your doctor may suggest eliminating dairy from your diet for two to four weeks to see if symptoms improve. For formula-fed babies, a switch to a hypoallergenic formula is the typical next step.
Reflux tends to involve frequent, forceful spit-up, arching of the back during or after feeds, and refusal to eat. If your baby’s crying is consistently tied to feeding rather than happening in unpredictable evening episodes, reflux is worth investigating.
Protecting Yourself When You Hit Your Limit
Colic is one of the leading triggers for caregiver frustration, and it’s important to be honest about that. Hours of inconsolable crying can push even the most patient parent to a breaking point. The CDC’s guidance is clear and worth memorizing: if you feel yourself getting overwhelmed, put the baby in a safe place like their crib, walk away, and take a break. Check on them every 5 to 10 minutes. A baby crying alone in a crib for a few minutes is safe. A baby in the arms of an overwhelmed parent is not.
Call a partner, family member, friend, or neighbor and ask them to take a shift. This is not a sign of failure. Colic is relentless, and no one is designed to handle it alone. If you don’t have someone nearby, many communities have crisis lines specifically for parents of crying infants.
Building a Routine That Helps
Colic episodes tend to cluster in the late afternoon and evening. Knowing this lets you plan around it. Try to rest when the baby rests earlier in the day so you have reserves for the hard hours. Feed your baby in a calm, quiet environment and burp them frequently during and after feeds to minimize swallowed air. If you’re bottle-feeding, experiment with slow-flow nipples and anti-colic bottles that reduce air intake.
Keep a simple log of when crying episodes start, how long they last, and what you tried. After a week, patterns often emerge. You might notice that certain holds work better than others, or that a particular time of day is consistently worse. This information also helps your pediatrician if you decide to seek additional guidance.
The hardest truth about colic is that sometimes nothing works, and the crying just has to run its course. That’s not your fault. Your baby isn’t in danger, and you’re not doing anything wrong. Colic resolves on its own, typically by 3 to 4 months, and it leaves no lasting effects on your baby’s health or development.