The safest and most effective way to clean out your nose is with a saline rinse, which flushes mucus, allergens, and irritants from your nasal passages using saltwater. You can do this with a squeeze bottle, neti pot, or bulb syringe, and the whole process takes about two minutes. For babies and small children, a bulb syringe with saline drops works best. Here’s everything you need to know to do it correctly and avoid common mistakes.
Why Saline Rinsing Works
When saltwater flows through your nasal passages, it does more than just physically wash out mucus. The saline thins thick mucus so it moves more easily, and the pressure of the flowing liquid stimulates the tiny hair-like structures (cilia) lining your nose to beat faster and push debris out. This restores your nose’s natural self-cleaning system rather than just providing temporary relief.
Saltier solutions (hypertonic saline) draw extra water out of swollen nasal tissue through osmosis, which can help if your passages feel puffy and blocked. However, clinical trials comparing standard-strength and extra-salty solutions haven’t found a significant difference in symptom improvement. A standard isotonic solution works well for most people and is less likely to sting.
How to Make the Saline Solution
The American Academy of Allergy, Asthma & Immunology recommends this recipe: mix 3 teaspoons of non-iodized salt with 1 teaspoon of baking soda, then store the dry mixture in a small airtight container. Each time you rinse, add 1 teaspoon of this mixture to 8 ounces (1 cup) of lukewarm distilled or previously boiled water. For children, use half a teaspoon of the mixture in 4 ounces of water.
Use pickling salt or canning salt, which contains no iodide, anti-caking agents, or preservatives. Those additives can irritate the lining of your nose. The baking soda acts as a buffer that makes the solution gentler on sensitive tissue.
Water Safety Is Critical
This is the single most important rule of nasal rinsing: never use plain tap water. Tap water can contain amoebas, specifically Naegleria fowleri and Acanthamoeba, that are harmless if swallowed but can cause a nearly always fatal brain infection if they enter through the nose. Although these infections are rare, deaths have occurred from people rinsing their sinuses with unsterilized tap water.
You have three safe options:
- Store-bought distilled or sterile water, labeled as such on the bottle
- Boiled tap water, brought to a rolling boil for 1 minute (3 minutes above 6,500 feet elevation), then cooled to lukewarm
- Water passed through a filter with an absolute pore size of 1 micron or smaller
Store any unused boiled water in a clean, sealed container.
Step-by-Step Rinsing Technique
Fill your squeeze bottle or neti pot with the lukewarm saline solution. Lean over a sink, tilt your head forward and slightly to one side, and breathe through your mouth. Place the tip of the bottle or spout snugly against one nostril and gently squeeze (for a bottle) or let gravity do the work (for a neti pot). The solution will flow in through one nostril and drain out the other, carrying mucus with it.
Once you’ve used about half the solution, switch sides. After finishing, gently blow your nose to clear any remaining liquid. Don’t blow hard, as forceful blowing can push fluid into your ear canals and cause discomfort or pressure.
The water should feel comfortable going in. If it stings or burns, you likely have too much salt in the mixture, or the water is too warm or too cool. Lukewarm, close to body temperature, is ideal.
Keeping Your Equipment Clean
After every use, rinse your bottle or neti pot thoroughly with safe water (distilled or boiled) and let it air dry completely with the cap off. Bacteria and mold thrive in damp, enclosed containers. Replace squeeze bottles every three months, even if they look clean.
Cleaning a Baby’s Nose
Babies can’t blow their own noses, so they need help. Place two or three drops of store-bought saline solution into each nostril, wait a few seconds for it to loosen the mucus, then use a rubber bulb syringe to suction it out. Squeeze the bulb first, gently insert the tip into the nostril, and slowly release to create suction.
Limit bulb suctioning to no more than three times a day. More frequent suctioning can irritate and swell the delicate lining inside a baby’s nose, making congestion worse rather than better. If your baby’s congestion isn’t improving with this routine, the issue likely needs a different approach.
What Not to Put in Your Nose
Cotton swabs, tissues twisted into a point, fingers, and other objects should stay out of your nasal passages. The mucous membrane inside your nose is thin and bleeds easily. Inserting objects can cause small abrasions that become entry points for infection, and you’ll likely just push mucus further back rather than removing it. The same principle that makes cotton swabs problematic in ears applies to nasal passages: you compact debris rather than clearing it.
Over-the-counter saline sprays are a gentler alternative if a full rinse feels like too much. They won’t flush as thoroughly as a rinse, but they moisten dried-out passages and help loosen crusted mucus so you can blow it out normally.
When to Skip Nasal Rinsing
Avoid nasal irrigation if you currently have an ear infection or feel pressure in one or both ears. The fluid can travel through the passages connecting your nose to your middle ear and worsen the problem. You should also hold off if you’ve had recent nasal surgery, until you’ve been cleared to resume rinsing.
For everyday congestion from colds, allergies, or dry air, rinsing once or twice daily is generally safe for extended periods. Many people with chronic sinus issues or allergies make it a daily habit, similar to brushing teeth, and find that consistent rinsing reduces how often they reach for decongestant sprays.