A sinus rinse flushes warm saltwater through one nostril and out the other, clearing mucus, allergens, and irritants from your nasal passages. The whole process takes about two minutes once you have your supplies ready. Here’s how to do it safely and effectively.
Why Sinus Rinsing Works
Saline flowing through your nasal passages does several things at once. It thins out thick mucus and physically washes it away. The gentle pressure of the fluid stimulates the tiny hair-like structures lining your sinuses (cilia) to beat faster, which improves your body’s natural ability to move mucus out. Saline also increases local blood circulation in the nasal cavity, producing a mild decongestant effect that can relieve stuffiness and sinus headaches.
Multiple randomized trials have shown that regular saline irrigation improves symptoms and quality of life for people with chronic sinus problems. It’s also helpful during colds, allergy season, or anytime your nose feels congested.
What You Need
You’ll need three things: a rinsing device, safe water, and a salt mixture.
For the device, you have options. A neti pot is a small teapot-shaped container that uses gravity to pour the solution through your nose. A squeeze bottle lets you push the solution with gentle manual pressure, which some people find reaches deeper into the sinus cavities. Both work well. Squeeze bottles are typically easier for beginners because you control the flow rate. You can find either at any pharmacy.
Preparing Safe Water
This is the most important safety step. Never use plain tap water for a sinus rinse. Tap water can contain low levels of bacteria and other organisms that are safe to drink (stomach acid kills them) but can cause serious infections when introduced directly into your nasal passages. Your options for safe water:
- Distilled or sterile water from the store, ready to use
- Boiled tap water brought to a rolling boil for 1 minute (3 minutes if you live above 6,500 feet elevation), then cooled to lukewarm
- Bleach-disinfected water as a last resort: 5 drops of unscented household bleach (4% to 5% concentration) per quart of water, stirred and left to stand for at least 30 minutes
If you boil water in advance, you can store it in a clean, covered container and use it within 24 hours.
Making the Saline Solution
The American Academy of Allergy, Asthma & Immunology recommends this recipe: mix 3 teaspoons of non-iodized salt (pickling salt or kosher salt both work) with 1 teaspoon of baking soda. Store this dry mixture in a small airtight container. When you’re ready to rinse, dissolve 1 teaspoon of the mixture into 8 ounces (1 cup) of lukewarm safe water.
The baking soda acts as a buffer that prevents the solution from stinging. If you still feel burning, use a little less of the dry mixture next time. For children, use half a teaspoon of the mixture in 4 ounces of water.
Temperature matters. The water should feel comfortably warm on the inside of your wrist, similar to testing a baby bottle. Water that’s too cold will be uncomfortable, and water that’s too hot can damage the delicate tissue inside your nose.
Step-by-Step Technique
Fill your device with the prepared saline solution. Stand at the sink and lean forward, looking down into the basin. Tilt your head to one side so that one ear points toward the sink and the other toward the ceiling. Think of it as if you were pressing your ear to the drain to listen for a sound.
Breathe through your mouth the entire time. This is important because mouth breathing closes off the back of your throat, preventing the solution from draining down into it. Place the spout or tip snugly against your upper nostril and either pour (neti pot) or gently squeeze (bottle). The solution will flow through your nasal cavity and drain out the lower nostril.
Use about half the solution on one side. Then gently blow your nose to clear any remaining fluid, tilt your head the other way, and repeat through the other nostril. When you’re finished, blow your nose gently a few more times to remove leftover saline. Avoid blowing hard, which can push fluid into your ear canals and cause discomfort or pressure.
Cleaning Your Equipment
After every use, discard any leftover solution from the device. Wash all parts with hot, soapy water and let them air dry completely. You can also run them through the dishwasher. Bacteria thrive in moist environments, so making sure the device dries fully between uses is key. Replace neti pots and squeeze bottles every few months, or sooner if you notice any discoloration or residue that won’t wash off.
How Often to Rinse
During an active cold, sinus infection, or allergy flare, rinsing once or twice a day provides the most relief. Some people rinse daily as a maintenance habit, particularly if they have chronic sinusitis or live in dry, dusty environments. There’s no strict upper limit on frequency, but most people find that once or twice daily is enough.
Consistency matters more than frequency. Research on sinus irrigation has found that compliance tends to be low: one study reported only about 24% of patients stuck with daily rinsing. The people who rinse regularly see the best results, so finding a routine that feels manageable (even if it’s just a few times a week) will do more good than rinsing intensively for a week and then stopping.
Rinsing for Babies and Children
Nasal irrigation is safe for babies starting around 9 months old, using a smaller volume and a gentler device like a bulb syringe. For babies, the Cleveland Clinic recommends 1 teaspoon of non-iodized salt (with an optional teaspoon of baking soda) per 2 cups of cooled sterile water. Use only a small amount of this solution at a time, a few drops or a gentle squirt into each nostril, and suction out the loosened mucus with the bulb.
Older children can use a squeeze bottle with adult supervision. The half-strength recipe (half a teaspoon of dry mixture in 4 ounces of water) reduces any chance of stinging. Let kids lean over the sink and practice with a small amount first so they get comfortable with the sensation before doing a full rinse.
Troubleshooting Common Problems
If the solution burns or stings, your salt ratio is probably off. Reduce the amount of dry mixture slightly. Pure water with no salt actually stings more than properly salted water, so don’t skip the salt entirely.
If the solution won’t flow through to the other side, your nasal passages may be too swollen. Try using a saline spray first to open things up, wait 10 to 15 minutes, then attempt the full rinse. You can also try tilting your head at slightly different angles to find the position where the fluid flows most easily.
If you feel pressure in your ears during or after rinsing, you’re likely squeezing too hard or blowing your nose too forcefully. Use gentler pressure and blow softly. If ear pressure persists or you have an active ear infection, hold off on rinsing until it resolves.
Some drainage from your nose may continue for 15 to 30 minutes after rinsing. This is normal. Lean forward and gently blow your nose if it bothers you. Many people prefer to rinse in the morning rather than right before leaving the house for this reason.