The simplest way to clean your nose is with a saline rinse, which flushes out mucus, dust, pollen, and other debris that your nasal passages trap throughout the day. But there are several methods worth knowing about, from basic nose-blowing technique to nasal irrigation devices, and the right approach depends on whether you’re dealing with everyday buildup, congestion from a cold, dry indoor air, or post-surgical recovery.
How Your Nose Cleans Itself
Your nose already has a built-in cleaning system. The lining of your nasal passages is covered in tiny hair-like structures called cilia that beat in coordinated waves, pushing a thin layer of mucus from the front of your nose toward the back of your throat, where you swallow it. This mucus traps airborne particles like dust, pollen, mold spores, fine particulate pollution, and even viruses before they reach your lungs. Under normal conditions, this system handles the job on its own.
When this system gets overwhelmed, though, mucus thickens and builds up. Allergies trigger excess mucus production. Cold, dry air causes the nasal lining to dry out and crack. Infections make everything swell. That’s when you need to help things along.
How to Blow Your Nose Correctly
This sounds obvious, but most people do it wrong. Blowing both nostrils at once with force can push mucus and bacteria backward into your sinuses or into the tubes connecting your nose to your ears. That can cause sinus pain, sinus infections, ear infections, and in rare cases, a ruptured eardrum.
The correct technique: press one finger against one nostril to close it, then gently blow out through the open nostril into a tissue. Repeat on the other side. The key word is gently. If you’re blowing hard enough that your ears pop or your face feels pressurized, you’re using too much force.
Saline Rinses: The Most Effective Method
Nasal saline irrigation is the gold standard for cleaning your nose. It physically flushes out mucus, allergens, and trapped particles that blowing alone can’t remove. In laboratory testing using a model of the human nasal cavity, saline sprays applied with the head tilted 45 degrees to the side removed 53 to 58% of deposited particulate matter in a single session. That makes it particularly useful if you live in a city with air pollution or spend time around dust, smoke, or pollen.
You can buy pre-made saline spray at any pharmacy, or make your own solution at home. To make it: mix 3 teaspoons of non-iodized salt with 1 teaspoon of baking soda. Store this dry mixture in a clean container. When you’re ready to rinse, add 1 teaspoon of the mixture to 8 ounces of lukewarm water and stir until dissolved.
Choosing a Delivery Method
Saline sprays come in small squeeze bottles and deliver a fine mist. They’re convenient, portable, and good for mild congestion or daily maintenance. Neti pots and squeeze-bottle irrigators push a larger volume of water through your nasal passages, which provides a more thorough rinse. If you’re dealing with significant congestion, thick mucus, or allergies, a full irrigation with a neti pot or squeeze bottle will do more than a spray.
To use a squeeze bottle or neti pot: lean over a sink, tilt your head forward so you’re looking at the drain, and insert the tip into one nostril. Keep your mouth open and breathe through it. Gently squeeze the solution in. It will flow through your nasal cavity and drain out the other nostril or your mouth. Repeat on the other side.
Water Safety Is Critical
Never use plain tap water for nasal irrigation. Tap water can contain low levels of bacteria and, in rare cases, a dangerous amoeba called Naegleria fowleri that can cause a fatal brain infection. The CDC recommends using only water labeled “distilled” or “sterile,” or tap water that has been boiled for at least 1 minute (3 minutes at elevations above 6,500 feet) and then cooled. If neither option is available, you can disinfect water with unscented household bleach: 4 to 5 drops per quart for bleach with 4 to 6% concentration, then let it stand for at least 30 minutes before use.
Isotonic vs. Hypertonic Solutions
A standard saline rinse is isotonic, meaning it has the same salt concentration as your body’s fluids, about 0.9%. It cleans gently without irritating the nasal lining. Hypertonic solutions have a higher salt concentration, typically 3% or more. The extra salt draws water out of swollen nasal tissue, which thins thick mucus and makes it easier to clear. Hypertonic rinses can sting slightly, but they’re more effective when you’re congested from a cold or sinus infection. If your nose feels fine and you’re just doing routine cleaning, isotonic is all you need.
Saline Sprays vs. Decongestant Sprays
Saline sprays and medicated decongestant sprays are not the same thing. Saline is just salt water. You can use it as often as you want with no side effects. Medicated decongestant sprays contain drugs that shrink swollen blood vessels in the nose, opening your airways quickly. They work well in the short term, but using one for more than 3 consecutive days can cause rebound congestion, a condition called rhinitis medicamentosa, where your nasal passages become more swollen than they were before you started. This creates a cycle where you feel compelled to keep spraying, which makes the problem worse over time and can eventually damage your nasal passages.
Dealing With Dryness and Crusting
If your nose feels dry, cracked, or crusty, especially during winter or in air-conditioned environments, moisturizing is more important than rinsing. Start by clearing your nasal passages with a gentle saline rinse or lukewarm water. Then apply a nasal emollient using a cotton swab. Products containing glycerin, lanolin, or petroleum jelly work well. Coat the inner surface of your nostrils lightly, two to three times a day. This creates a protective barrier that prevents the lining from drying out and cracking, which reduces crusting and the urge to pick.
Why You Should Avoid Nose Picking
Picking your nose does more than just look bad. It introduces bacteria from your fingers directly into the warm, moist environment of your nasal passages. A study published in Infection Control & Hospital Epidemiology found that people who regularly picked their nose were about 50% more likely to carry Staphylococcus aureus in their nasal passages compared to non-pickers. The more frequently someone picked, the higher the bacterial load. S. aureus is the same organism responsible for staph infections, and nasal carriage is a known risk factor for more serious infections, including antibiotic-resistant strains like MRSA. Beyond bacteria, picking can cause nosebleeds, damage the delicate nasal lining, and lead to painful infections at the nostril opening.
Cleaning a Baby’s Nose
Babies can’t blow their own noses, and congestion makes it hard for them to feed and sleep. A bulb syringe is the standard tool. Squeeze the bulb first to push air out, then gently insert the tip into one nostril while keeping the bulb compressed. Release the bulb slowly, and the suction will draw mucus out. Squeeze the contents onto a tissue and repeat on the other side.
If the mucus is thick, put one or two drops of saline into each nostril before suctioning to loosen it. Always suction before feeding, not after, because suctioning on a full stomach can trigger vomiting. Limit suctioning to no more than four times per day. More than that can irritate the nasal lining and make congestion worse.
After Sinus or Nasal Surgery
If you’ve had sinus surgery, septoplasty, or a similar procedure, nasal irrigation becomes part of your recovery. Your surgeon will typically give you specific instructions, but the general approach involves a hypertonic saline rinse: 3 teaspoons of non-iodized salt and 2 teaspoons of baking soda dissolved in 1 quart of boiled or distilled water. You’ll lean over a sink with your head pointed toward the drain and gently push the solution through each nostril using a squeeze bottle.
During recovery, avoid blowing your nose, bending over, straining, or lifting anything heavier than a couple bags of groceries. These actions increase pressure in the nasal area and can disrupt healing. Don’t use any medicated nasal sprays unless your surgeon specifically tells you to.