The simplest way to clean your nose is with a saline rinse, which flushes out mucus, allergens, and irritants by running saltwater through your nasal passages. You can also use saline sprays for lighter maintenance or blow your nose properly to clear everyday congestion. The method you choose depends on whether you’re dealing with a stuffy nose, recovering from surgery, or just maintaining daily nasal hygiene.
How Saline Rinsing Works
A saline rinse physically washes the inside of your nasal cavity, softening and dislodging the mucus lining. It also removes inflammatory compounds and allergens that trigger congestion and irritation. Think of it less like medicine and more like pressure-washing a dirty surface. The salt in the solution helps thin sticky mucus so it flows out more easily.
You can rinse with up to 8 ounces of solution per nostril, once or twice a day. During a bad cold or allergy flare, twice daily is common. For general maintenance or dry air relief, once a day or even a few times a week is enough.
Choosing the Right Tool
Three main devices get the job done, and they aren’t equally effective.
- Squeeze bottles use gentle, user-controlled pressure to push saline through your sinuses. Research on cadaver models found that squeeze bottles consistently delivered better irrigation to the maxillary, frontal, and sphenoid sinuses compared to pulsating devices. For most people, a squeeze bottle is the best balance of effectiveness and ease of use.
- Neti pots rely on gravity alone. You tilt your head and let the solution flow from one nostril out the other. They work well for mild congestion but deliver less pressure than a squeeze bottle.
- Saline sprays deliver a fine mist that moisturizes nasal passages but won’t flush out thick mucus the way a full rinse does. They’re best for quick hydration throughout the day, not deep cleaning.
Making a Safe Saline Solution
The single most important rule: never use plain tap water. Tap water can contain bacteria and amoebas that are harmless when swallowed (stomach acid kills them) but can cause serious, even fatal infections when introduced directly into your nasal passages. The FDA specifically warns against unfiltered tap water for nasal rinsing.
Safe water options include:
- Distilled or sterile water from any grocery store or pharmacy
- Boiled tap water that has been boiled for 3 to 5 minutes, then cooled to lukewarm. Use it within 24 hours and store it in a clean, sealed container.
- Filtered water that has passed through a filter specifically designed to trap infectious organisms (check the CDC’s filter recommendations for the right type)
For the salt mixture, most pre-made packets use a combination of sodium chloride and sodium bicarbonate. If you’re mixing your own, dissolve about half a teaspoon of non-iodized salt into 8 ounces of your safe water. A pinch of baking soda helps reduce any stinging sensation.
Isotonic vs. Hypertonic Solutions
An isotonic solution matches your body’s natural salt concentration (about 0.9% salt). It’s gentle, comfortable, and works well for daily rinsing. A hypertonic solution contains more salt, typically 2 to 3%, and pulls extra fluid out of swollen nasal tissues, which can provide more relief during sinus infections or heavy congestion. A systematic review found that hypertonic saline improved symptoms more than isotonic in people with sinus disease, though it also caused more minor side effects like burning or stinging. Concentrations above 5% showed no benefit and more discomfort, so stronger is not better here.
Step-by-Step Nasal Rinsing
Stand over a sink or in the shower. Tilt your head forward and slightly to one side. Place the nozzle of your squeeze bottle or the spout of your neti pot snugly against one nostril. Breathe through your mouth. Gently squeeze (or let gravity do the work with a neti pot) until the solution flows in one nostril and drains out the other. Some will drip down your throat, which is normal. Repeat on the other side.
After rinsing, gently blow your nose to clear remaining solution. Don’t blow hard, and don’t pinch both nostrils closed while blowing. Research shows that blowing with both nostrils blocked generates dramatically higher pressure inside your nasal cavity, which can push mucus and fluid into your sinuses and middle ear. Always leave one nostril open while you blow the other.
Keeping Your Equipment Clean
A dirty rinse bottle defeats the purpose. After every use, rinse the bottle and wash the tip with soap and water, then let it air dry completely. Once a week, sterilize the bottle by filling it with a 1:1 mixture of water and hydrogen peroxide (or water and bleach), shaking, and squirting the solution through the nozzle so it flows over the tip. Bottle parts can also go through the dishwasher once or twice a week.
Replace plastic squeeze bottles every few months, since tiny scratches and crevices can harbor bacteria even after cleaning.
Blowing Your Nose the Right Way
For everyday congestion when you don’t need a full rinse, proper nose blowing still matters. Press one finger against one nostril to close it, then blow gently through the open side into a tissue. Switch sides. People with chronic sinus problems tend to generate significantly higher pressures when blowing, nearly double that of healthy individuals, which can worsen inflammation over time. Gentle, one-side-at-a-time blowing keeps the pressure manageable.
Cleaning a Baby’s Nose
Babies can’t blow their own noses, so you’ll need a bulb syringe or a nasal aspirator. The technique for a bulb syringe is simple but the order matters: squeeze the air out of the bulb first, then gently insert the tip into one nostril, and release the bulb. The suction draws mucus into the bulb. Squeeze the mucus onto a tissue and repeat on the other side.
If the mucus is too thick to suction easily, put a drop or two of plain saline into each nostril first to loosen things up. Always suction before feeding, not after, because suctioning on a full stomach can cause vomiting. Limit suctioning to four times a day to avoid irritating the delicate lining of a baby’s nose. Gently wipe any mucus around the nostrils with a soft tissue to prevent skin irritation.
After each use, wash the bulb syringe by squeezing warm soapy water into it, shaking, and squeezing it out. Repeat several times, then rinse thoroughly with clean water the same way.
Nasal Cleaning After Surgery
If you’ve had nasal surgery like a septoplasty, your surgeon will typically have you start saline rinsing within the first few days of recovery to prevent crusting and promote healing. For any crusting that forms around your nostrils, clean the outside with a cotton swab dipped in a half-and-half mixture of hydrogen peroxide and water. Do not insert the swab inside your nose, as this can disrupt healing tissue or internal splints.
Follow your surgeon’s specific instructions for when to start rinsing and how often, since timing varies depending on the procedure and whether packing or splints were placed.