14 July 2025 · Maia Hillsborrow
Marketing Director · Mother of five
The Purpose of the Bulb Syringe for Infants
The bulb syringe is one of the few pieces of baby equipment that's handy, costs almost nothing, and is used wrongly by nearly everybody who owns one, myself included for about three children.
It's also the one item in the drawer that turns a miserable night into a manageable one, so understand it properly.
Why a blocked nose matters more in a baby
Because young babies breathe through the nose almost exclusively, and they have to stop breathing to swallow.
An adult with a blocked nose is uncomfortable. A baby with a blocked nose can't feed properly, because feeding requires her to seal her mouth around a breast or a teat while breathing through a nose that isn't working. So she comes off, cries, tries again, gets tired, while the same mechanism ruins sleep, until by the second night you have a baby who's congested, hungry and exhausted all at once.
Their nasal passages are narrow, so a small amount of mucus blocks a lot of the airway. This is the entire reason the bulb syringe exists.
What it's for, and what it isn't
It's for clearing mucus from the front of the nose so that a baby can feed and sleep. That's the whole purpose.
It isn't a treatment for a cold, it doesn't shorten one, and it doesn't reach anything deep. Its value is in timing: used ten minutes before a feed and before bed, it buys the two things a congested baby most needs. Used constantly through the day it irritates the lining, causes swelling, and makes the congestion worse, which is the mistake I made repeatedly. Three times a day for about a week, I think, before I worked out why she was worse.
A few times a day at most, aimed at the moments that count.
How to use one properly
The step almost everybody skips is the saline, and it's the one that counts. Suction on dry, thick mucus achieves nothing and irritates the nose. Saline first, always.
| Step | What to do |
|---|---|
| 1 | Saline drops first, one or two per nostril, and wait a moment |
| 2 | Squeeze the bulb before it goes near the nose |
| 3 | Insert gently, no more than about 1cm, angled outward not upward |
| 4 | Release slowly, then remove and squeeze the contents onto a tissue |
| 5 | One nostril at a time, and no more than a few times a day |
| 6 | Wash and dry the bulb fully between uses. It grows mould otherwise |
A few details that make the difference between it working and not. Squeeze the bulb before it goes anywhere near her nose, because squeezing it once inserted blows air into the nasal passage. Angle it outward toward the cheek. Go in no more than about a centimeter, since you're clearing the front of the nose and nothing further in. Do one nostril at a time, releasing slowly. Expect her to hate it. Every one of my five has hated it, it takes about twenty seconds, and afterward they feed. Two people is easier than one if there's another adult available.
Cleaning it, which is where most people fail
A poorly cleaned bulb syringe becomes a device for putting mold into your baby's nose.
The bulb is opaque, damp and warm inside, and in a humid climate it'll grow something within days if it isn't dried properly. You can't see in. Rinsing it under the tap and standing it on the drainer isn't enough.
- Wash immediately after every use, in hot soapy water, drawing the water in and squirting it out several times.
- Rinse the same way with clean hot water until it runs clear.
- Squeeze out every drop, then stand it tip-down so gravity drains it.
- Dry it fully before it goes back in the drawer. A bulb put away damp is the problem.
- Replace it periodically, and replace it immediately if you see any discoloration inside or it smells at all.
- If you can't get it properly dry, a nasal aspirator that comes apart is a better tool for this climate, because you can see and dry every part of it.
When they are unwell
The alternatives
Saline drops or spray on their own do a surprising amount, and for many babies they're enough without any suction at all. They cost very little, they can be used more freely, and they're the first thing to reach for.
Filtered nasal aspirators, the kind where the adult provides the suction through a tube with a filter, are more effective than a bulb, easier to clean because they dismantle, and much less unpleasant to use than they sound. Electric ones exist and work, and are noisy.
Beyond that: upright positioning for feeds, a warm steamy bathroom for a few minutes before bed, and plenty of fluids. Vapor rubs and decongestants aren't for babies. Honey isn't for anyone under one year old, ever, because of the botulism risk.
When the blocked nose isn't the problem
Most congestion in a baby is a cold and resolves in a week to ten days. These are the things that aren't.
- Fast breathing, grunting, flaring nostrils, or the skin pulling in between or under the ribs, which is respiratory distress and needs urgent assessment.
- Blue or gray lips, tongue or face, which needs emergency care immediately.
- A temperature of 38°C or above in a baby under three months, urgently, regardless of the congestion.
- Refusing feeds, taking well under half the usual amount, or noticeably fewer wet diapers.
- Unusual drowsiness, floppiness, or difficulty rousing her.
- A wheeze or a persistent cough in a young baby, particularly in the first year, which deserves having listened to.
- Congestion in a newborn that is constant from birth and unrelated to any illness, which wants checking.
The distinction that counts is between a baby who's congested and otherwise herself, and a baby who's working to breathe. The second one isn't a nose problem and no amount of suction will help it.
What parents ask
How often can you use a bulb syringe on a baby?
A few times a day at most, and no more than twice per nostril in one session, timed before feeds or sleep. Frequent suctioning irritates and swells the lining of the nose, which makes the congestion worse and never better.
Do you use saline before a bulb syringe?
Yes. Two or three drops in each nostril, left for about thirty seconds. The saline loosens the mucus and does most of it; the syringe just removes what has been loosened, and saline alone is often enough.
How do you clean a bulb syringe?
Draw hot soapy water in and expel it several times, repeat with clean water, then dry it tip-down in a glass so water drains and never pools. Replace it if you see any discolouration inside, mould grows in the bulb and is invisible from outside.
The evidence
This guide is general information, written to help you understand a topic and ask better questions. It is not medical advice and does not replace your own doctor, midwife or paediatrician. Anything that worries you about your baby belongs with them.