The safest and most effective way to clean inside your nose is with a saline rinse, which flushes out mucus, allergens, and debris without damaging the delicate tissue lining your nasal passages. You can do this once or twice daily when you’re congested, or a few times a week as general maintenance. The key details that matter are using the right water, the right salt ratio, and the right technique.
Saline Rinse: The Standard Method
A saline rinse pushes a stream of saltwater into one nostril and lets it drain out the other, carrying mucus and irritants with it. You can use a neti pot (a small teapot-shaped device), a squeeze bottle like the NeilMed Sinus Rinse, or a bulb syringe. Squeeze bottles give you the most control over pressure and are the easiest for beginners.
To use one, lean over a sink and tilt your head slightly to one side. Place the tip of the device against your upper nostril and gently squeeze or pour. The solution will flow through your nasal cavity and exit through the lower nostril. Breathe through your mouth the entire time. Repeat on the other side, then gently blow your nose to clear any remaining liquid.
Water Safety Is Critical
Never use plain tap water for a nasal rinse. Tap water can contain amoebas, specifically Naegleria fowleri and Acanthamoeba, that are harmless if swallowed but can cause fatal brain infections if they enter through the nose. These organisms can live in household pipes and water heaters. Deaths from nasal rinsing with contaminated tap water have been documented.
Your water options, in order of convenience:
- Store-bought distilled or sterile water. The simplest choice.
- Boiled tap water. Bring water to a rolling boil for 1 minute (3 minutes above 6,500 feet elevation), then let it cool completely before use.
- Bleach-treated water. If nothing else is available, add 5 drops of unscented household bleach (4% to 5.9% concentration) per quart of water, or 4 drops if your bleach is 6% to 8.25%. Double those amounts if the water looks cloudy.
Making Your Own Saline Solution
A normal saline solution matches the salt concentration of your body’s fluids at 0.9%, which means about 9 grams of salt per liter of water. In practical kitchen terms, that’s roughly half a teaspoon of non-iodized salt per cup (8 ounces) of water. Use pure salt without additives like anti-caking agents, which can irritate your nasal lining. Pre-measured saline packets are sold alongside most neti pots and squeeze bottles and take the guesswork out of the ratio.
If you want a slightly stronger solution to help with heavy congestion, you can increase the salt a bit. This hypertonic solution draws more fluid out of swollen tissues, but it can sting. Start with the standard ratio and adjust from there.
Dealing With Crusts and Dryness
If the inside of your nose feels dry, cracked, or has hard crusts that bleed when they come loose, resist the urge to pick at them. Nose picking and aggressive blowing are the most common causes of nasal vestibulitis, a bacterial infection at the opening of the nostril typically caused by Staphylococcus aureus. Symptoms include redness, swelling, pain, and more crusting, which creates a cycle of irritation.
Instead, soften crusts by applying a small dab of saline gel or a gentle ointment to the outside of your nostril and massaging it inward. Don’t insert cotton swabs or fingers into the nostril, as that causes additional trauma to the tissue. If painful red bumps develop, applying a warm, moist compress for 15 to 20 minutes three times a day can help them heal. Persistent infections may need a prescription antibiotic ointment.
Cleaning a Baby’s Nose
Babies can’t blow their own noses, so when congestion makes feeding or sleeping difficult, you’ll need to help. The best times to clear a baby’s nose are before meals and before bed. Use saline drops (not spray, which is too forceful) to loosen the mucus first, placing a couple of drops in one nostril.
Two tools work well. A suction bulb is the simpler option: squeeze the bulb first, gently insert the tip just inside the nostril (not deep, since baby nostrils are tiny), then release the bulb to create suction. A nasal aspirator like the NoseFrida uses a tube and mouthpiece, where you place the tip against the nostril to form a seal and suck gently through the mouthpiece. A disposable filter prevents any mucus from reaching your mouth. Swaddling your baby before you start can help keep them still and safe.
Don’t suction too frequently or too aggressively. Overdoing it irritates the nasal lining and can cause swelling that makes congestion worse.
Keeping Your Equipment Clean
A dirty rinse device defeats the purpose. After each use, rinse the bottle, cap, and any tubing with running water. Then fill the bottle with safe water (distilled or previously boiled), add a few drops of dish soap or baby shampoo, cap it, shake well, and squeeze hard so the soapy water flows through all internal parts. Rinse thoroughly until no soap remains and set everything on a clean paper towel to air dry completely.
For extra disinfection, you can microwave the disassembled bottle, cap, and tube for about 40 seconds. Don’t run the bottle through a dishwasher, as the heat and pressure can warp the plastic. If you notice discoloration or cracks, replace the bottle immediately. Even with good care, replace your rinse bottle every three months.
After Nasal Surgery
If you’ve had surgery on your nose or sinuses, cleaning instructions will be more specific. Your surgeon will typically have you start saline rinses during recovery, but with important restrictions: avoid blowing your nose for the first one to two weeks, and if you need to sneeze, do it with your mouth open to reduce pressure on the healing tissue. Sleep on your back with your head elevated.
For crusting around the outside of your nostrils after surgery, you can use a cotton swab dipped in a half-and-half mix of hydrogen peroxide and water to gently clean the area. Never insert the swab inside the nostril. Follow your surgeon’s specific timeline for when to begin irrigation and what solution to use.
How Often to Rinse
During active congestion from a cold, sinus infection, or allergy flare, rinsing once or twice daily is safe and effective. Some people rinse a few times a week year-round as a preventive habit, especially if they’re prone to sinus infections or live with seasonal allergies. There’s no strict upper limit, but if daily rinsing starts to feel drying or irritating, scale back and see how your nose responds.