Clear Sinuses Safely: Why Distilled Water Matters

As allergy season peaks and unpredictable weather stirs up colds and sinus pressure, many people turn to home remedies for relief—like nasal irrigation. Whether it’s a neti pot, saline squeeze bottle, or nasal rinse system, flushing your sinuses can be an effective way to clear congestion, relieve sinus headaches, and manage seasonal symptoms.

But there’s one critical safety tip that’s often overlooked: Always use distilled, sterile, or previously boiled water for nasal rinses.

Why the Type of Water Matters

Tap water may seem harmless—after all, we drink it and cook with it daily. However, it can contain microscopic organisms that are safe to ingest but not safe to introduce into your nasal passages, which are in close proximity to the brain.

A recent case in Texas tragically underscores this point. A woman died after using water from an RV to rinse her sinuses. The water was contaminated with a rare but deadly amoeba, Naegleria fowleri, which can cause a fatal brain infection when it enters through the nose. While such infections are extremely rare, they are almost always deadly—and preventable.

Safe Sinus Rinse Guidelines from Alana Pantely, PA-C

If you’re using sinus rinse kits or neti pots, follow these simple but essential safety steps:

Use only: Distilled or sterile water, boiled water, or appropriately filtered or UV-treated water‍
Clean your device after each use with sterile water and let it air dry completely.‍
Replace sinus rinse bottles or neti pots regularly‍
Never use unfiltered tap water or water from lakes, rivers, wells, or untreated sources—even if you think it’s clean.