How to Soothe a Colicky Baby

If you’re reading this with one hand while bouncing a red-faced, screaming newborn with the other, I see you. Colic is one of the most exhausting early parenting experiences because it can feel like nothing works, and everyone has an opinion. You didn’t cause this, and you’re not doing it wrong.

Let’s talk about what colic actually is, what might be going on in your baby’s body, and the most evidence-informed soothing techniques I’ve seen help families in clinic and at home.

What is colic?

Colic is a pattern of frequent, intense crying in an otherwise healthy baby. The classic definition is the “rule of threes”:

• Crying more than 3 hours a day
• More than 3 days a week
• For 3 weeks or longer

Colic is not the same as normal newborn fussiness. Many babies get fussy in the evenings, but with colic, the crying is longer, harder to soothe, and can feel relentless.

When does colic start and peak?

• Typical onset: often around 2 to 3 weeks of age
• Peak: often around 6 weeks
• Improves for many babies: by 3 to 4 months

That timeline matters because it means there is usually a light at the end of the tunnel, even when the nights feel endless.

What colic is not

Colic is a diagnosis of pattern and exclusion. A baby can cry a lot and still be healthy and growing well. But sometimes, crying that looks like colic is a sign of something else.

It is worth checking in with your pediatrician to rule out issues like reflux with poor weight gain, infection, constipation, feeding problems, cow’s milk protein allergy, or a hair tourniquet (a strand of hair wrapped around a toe, finger, or penis).

What causes colic?

We still don’t have one single proven cause, which is frustrating when you just want a clear fix. Most experts think colic is a mix of things that can pile up in a tiny nervous system.

Common contributors

• Immature digestion: Newborn guts are still learning how to move milk through smoothly. Some babies are extra sensitive to normal gas and intestinal movement.
• Overstimulation: By late afternoon and evening, babies can get overwhelmed by lights, noise, handling, and the general busyness of life. Their nervous system has a hard time “turning off.”
• Feeding mechanics: Swallowing air from a fast-flow nipple, a shallow latch, or gulping can add discomfort and make crying worse.
• Normal developmental crying curve: Many babies cry more in the first 2 months, and colic may be an extreme end of that normal curve.
• Sensitivity to cow’s milk protein: A smaller group of babies have symptoms related to cow’s milk protein intolerance or allergy (this is not the same as lactose intolerance).

Important note: colic is not caused by “spoiling” a baby, not by a parent being anxious, and not by you missing some magical trick other parents have.

How to soothe a colicky baby: start with the 5 S’s

The most consistently helpful set of calming tools I’ve seen is Harvey Karp’s “5 S’s.” They work best when you combine them, not when you try them one at a time for 15 seconds and declare defeat. Give each attempt a little time, and when something helps, stick with it.

1) Swaddle

Swaddling can help reduce the startle reflex, which can keep an overtired baby stuck in a cycle of crying.

• Keep the swaddle snug around the chest but allow hip movement.
• Avoid overheating. Use light layers and stop if your baby seems sweaty or too warm.
• If your baby is rolling (or close to it), stop swaddling and switch to an arms-out sleep sack.
• For sleep, always place baby on their back, even if they calm on their side while being held.

2) Side or stomach position (for soothing only)

This is for calming while you are holding your baby, not for sleep. Many babies settle faster on their side or tummy over your forearm.

• Try the “colic carry”: baby tummy down along your forearm, head and neck supported, your hand between the legs.
• Once calm or drowsy, place baby back to sleep on their back.

3) Shush (white noise)

Babies are used to loud, whooshing sounds in the womb. White noise can be surprisingly effective for colic, especially during the evening witching hours.

• Use a white noise machine, a fan, or a phone app placed safely away from baby.
• Keep volume low. Many experts recommend keeping continuous noise under about 50 dB and placing the device at least 6 to 7 feet from the crib or bassinet when possible.
• Pair it with swaddling and rocking for best results.

4) Swing (rhythmic motion)

Small, fast, consistent motion often works better than slow, dramatic bouncing. Think “tiny jiggle,” not “gym workout.” Always support the head and neck, and avoid any motion that feels like shaking.

• Try gentle rocking, a stroller walk, or babywearing.
• If using a swing or bouncer, follow the manufacturer’s guidance and remember these are for awake soothing, not routine sleep.
• Car rides help some babies, but do not drive sleep-deprived if you feel unsafe.

5) Suck

Sucking is a powerful calming reflex.

• If breastfeeding is established and your pediatrician agrees, offer a pacifier.
• If baby is hungry, feed. If baby is comfort sucking, that is normal too.

More calming techniques that often help

Burping and gas relief

Not all colic is “gas,” but trapped air can make a hard evening much harder.

• Burp more often: Try burping midway through feeds and again after.
• Try different burping positions: Over the shoulder, sitting forward on your lap, or tummy down across your knees with head supported.
• Bicycle legs and gentle tummy massage: Use slow, clockwise circles around the belly button.
• Check bottle flow: A nipple that flows too fast can cause gulping and extra air.

Gas drops

Over-the-counter simethicone gas drops are commonly used. They are generally considered safe for many babies, but evidence that they improve colic is limited, and results are mixed. Some families swear they help, others see no change.

• Use only as directed on the package and by your pediatrician.
• If your baby’s crying is severe, do not let gas drops delay a medical check-in.

Warm bath or warm compress

A warm bath can reset an evening spiral. If a bath feels like too much, a warm compress on the belly while you hold baby can also be soothing.

Dim lights and reduce stimulation

Colicky babies often melt down when their nervous system is overloaded.

• Lower lights around dinner time.
• Turn off the TV, reduce loud voices, and limit “pass the baby” handling.
• Try a calm, repetitive routine: swaddle, white noise, rock, pacifier.

Feeding and diet: what’s worth trying?

Feeding changes can help in certain situations, but they should be targeted and time-limited so you are not endlessly restricting your diet or switching formulas every two days.

If you are breastfeeding

Most breastfeeding parents do not need to overhaul their diet. That said, for some babies, reducing certain proteins can make a noticeable difference.

• Consider a 2-week trial of eliminating dairy if your baby also has signs like eczema, blood or mucus in stool, significant spit-up, or a strong family history of allergies.
• If dairy elimination helps, talk with your pediatrician about next steps and how to maintain nutrition, including calcium and vitamin D.
• Skipping “gassy foods” like broccoli or beans rarely makes a consistent difference because those foods do not directly “gas up” the baby through breast milk. When diet changes help, it is more often related to protein sensitivities than gas itself.

If you want to try an elimination diet, I strongly recommend doing it with your pediatrician’s guidance so you have a clear plan and a clear end point.

If you are formula feeding

Formula changes can be helpful for a subset of babies, especially if cow’s milk protein intolerance or allergy is suspected. This is a decision to make with your pediatrician, because the “right” formula depends on your baby’s symptoms.

• Frequent switching can upset digestion and make it harder to tell what is helping.
• For general fussiness, your clinician may consider a trial of a partially hydrolyzed formula.
• If cow’s milk protein allergy is suspected (for example, blood in stool, eczema, significant vomiting, poor growth), clinicians typically recommend a trial of an extensively hydrolyzed formula, or sometimes an amino acid-based formula, under medical guidance.

Check feeding basics (often overlooked)

• Ensure a deep latch if breastfeeding. If feeds are painful, clicking is frequent, or baby seems very gassy, a lactation consultant can be a game changer.
• Pace bottle feeds and keep baby more upright.
• Offer smaller, more frequent feeds if baby tends to gulp and then melt down.

Probiotics

You may hear about probiotics for colic, especially Lactobacillus reuteri. The evidence is mixed, and any benefit may differ between breastfed and formula-fed babies. If you are considering probiotics, ask your pediatrician for guidance on whether it is worth a time-limited trial for your baby.

When to call the pediatrician

Colic is common, but it should never stop you from trusting your instincts. If something feels “off,” call. A quick check can rule out things that look like colic but need treatment.

If you can, consider tracking a few basics for a couple of days (rough crying windows, feeds, diapers, spit-up, and anything that helps). This can make it easier for your clinician to spot patterns and rule-outs.

Call your pediatrician within 24 hours if:

• Your baby is not feeding well or is refusing multiple feeds
• There is vomiting (especially forceful or green), persistent diarrhea, or dehydration (dry mouth, fewer wet diapers)
• You see blood in the stool
• Your baby is not gaining weight or seems unusually sleepy
• Crying suddenly gets much worse or sounds different than usual

Seek urgent care now if your baby has:

• Fever (follow your clinic’s guidance for age, especially for babies under 3 months)
• Breathing trouble, blue lips, or pauses in breathing
• A swollen, hard belly or severe, persistent vomiting
• Uncontrolled crying with signs of severe pain that you cannot soothe at all

Even if it “ends up being colic,” getting reassurance and a plan is worth it.

A realistic “colic reset” routine

When you’re deep in it, decision fatigue is real. Here is a simple sequence you can repeat:

1. Check the basics: diaper, hunger, temperature, hair tourniquet on fingers and toes, any obvious rash or swelling.
2. Swaddle (or sleep sack if rolling).
3. White noise on.
4. Side or tummy hold while awake and held.
5. Rhythmic motion (rocking, walking, or babywearing).
6. Offer a pacifier or allow non-nutritive sucking.
7. Burp and try bicycle legs for 1 to 2 minutes.
8. If you are still stuck, change the environment: step outside for fresh air, or move into a dark, quiet room.

If something works even a little, keep doing that thing longer than you think you should. Colic often responds to steady, repetitive input.

Coping strategies for exhausted parents

I’m going to say this clearly: colic is a mental and physical endurance event. Your job is to keep your baby safe and yourself functioning, not to “win” against the crying.

Use the tag team method

• Trade shifts with a partner, friend, or family member if possible, even if it is just 30 minutes.
• If you are solo parenting, ask someone to come sit with you. They can fold laundry, hold the baby, or just keep you company while you bounce.

Make a safe plan for when you’re overwhelmed

If you feel yourself getting angry or panicky, put baby in a safe sleep space (crib or bassinet, on their back, no loose blankets), and take 5 to 10 minutes to reset.

• Set a timer.
• Drink water, eat something, splash your face, step outside your door for fresh air.
• Use earplugs or noise-canceling headphones while you soothe. You will still hear your baby, just at a less alarming volume.

Lower the bar for everything else

• Order dinner, accept help, and let the house be messy.
• Sleep in shifts whenever possible.
• If you have other kids, create a simple “colic basket” with snacks, books, and a quiet activity they can do near you.

Know the red line: never shake a baby

Intense crying is a major risk factor for shaking. If you feel close to losing control, put baby down in a safe place and step away. If you need immediate support, call a trusted person or your local crisis line. Asking for help is a safety skill, not a parenting failure.

Will my baby grow out of colic?

In most cases, yes. Colic typically improves significantly by 3 to 4 months as the nervous system matures and babies become better at regulating themselves.

In the meantime, focus on two things:

• Short term: stack soothing techniques (5 S’s plus white noise and motion) and aim for small wins.
• Long term: protect your sleep and mental health with shifts, support, and a plan for the hardest hours.

You and your baby are not broken. You’re getting through a rough season, together, one long evening at a time.