Neti Pot for Allergies: Does It Work, and How to Use One Safely

A neti pot rinses your nasal passages with salt water (saline), washing out mucus and allergens like pollen. A Cochrane review found that saline rinses may ease allergic rhinitis symptoms in adults and children, though the evidence is low quality. The bigger concern is safety: the FDA warns that using plain tap water can cause rare but serious infections.

This guide covers what the research shows, which water is safe, step-by-step use and cleaning, and who should check with a doctor first. For more, see our seasonal allergy guides.

Jump to: Quick answer · Does it work? · Safe water · How to use one · Cleaning · Who should ask first · FAQ

Quick answer

• It may help: in a 2018 Cochrane review of 14 trials, saline irrigation may have improved allergy symptoms compared with no rinsing for up to three months (low-quality evidence).
• Never use plain tap water. The FDA says to use distilled or sterile water, tap water boiled for 3 to 5 minutes and cooled, or water from a filter designed to trap infectious organisms.
• Keep it clean: wash the device after each use and let it dry completely.
• Kids: the FDA says children can use rinsing devices if a pediatrician recommends it.
• See a doctor if symptoms don’t improve or get worse, or if you get fever, nosebleeds or headaches while rinsing.

Does a neti pot work for allergies?

The best summary of the evidence is a 2018 Cochrane review of 14 randomized trials with 747 people (499 children and 248 adults) with allergic rhinitis. It included neti pots and other methods such as sprays and squeeze bottles.

No study followed people beyond three months. In short, a saline rinse is a reasonable, low-cost add-on, but it isn’t a substitute for treatment your doctor recommends. For other options, see allergy drops vs shots and how to avoid pollen.

Which water is safe?

The FDA explains that tap water isn’t filtered or treated enough for nasal rinsing. It can contain bacteria and protozoa, including amoebas, which stomach acid kills when you drink them but which can survive in the nose and cause serious, rarely fatal infections. The CDC notes that infections with the brain-eating ameba Naegleria fowleri have happened when people used tap water containing it for nasal rinsing.

Safe choices, according to the FDA:

• Distilled or sterile water, labeled as such, from a store.
• Boiled and cooled tap water: boil for 3 to 5 minutes, cool until lukewarm, and store in a clean, closed container for use within 24 hours.
• Filtered water from a filter designed to trap potentially infectious organisms.

How to use a neti pot

1. Wash and dry your hands and make sure the device is clean and completely dry.
2. Mix the saline with safe water, using the packet that came with the device or your own mix as directed.
3. Lean over a sink with your head tilted sideways, forehead and chin roughly level, and breathe through your mouth.
4. Put the spout in your upper nostril and pour gently so the solution drains out the lower nostril.
5. Clear your nose by blowing gently, then repeat on the other side.

Follow the maker’s instructions, and ask a pharmacist or health care provider if anything is unclear.

Cleaning your neti pot

• Wash the device after every use, following the maker’s directions.
• Dry the inside with a paper towel or let it air-dry completely.

Who should check with a doctor first

• Children: the FDA notes that some children are diagnosed with nasal allergies as early as age 2 and may use rinsing devices if a pediatrician recommends it. Very young children may not tolerate it, and the device should be sized for the user’s age.
• People with weakened immune systems should talk to a health care provider before using one.
• Anyone whose symptoms don’t improve or get worse, especially with fever, nosebleeds or headaches while rinsing, should go back to their provider.

Not sure whether it’s allergies or a cold? See cold vs allergies. If a sinus infection is the problem, read do sinus infections need antibiotics?

This guide is general information, not medical advice. Read our medical disclaimer.

Frequently asked questions

Does a neti pot help with allergies?

It may. A 2018 Cochrane review found saline nasal irrigation may improve allergic rhinitis symptoms compared with no rinsing for up to three months, but the evidence was low quality.

Can I use tap water in a neti pot?

Not straight from the tap. The FDA recommends distilled or sterile water, tap water boiled for 3 to 5 minutes and cooled, or water from a filter designed to trap infectious organisms.

How long can I keep boiled water for a neti pot?

The FDA says to store it in a clean, closed container and use it within 24 hours.

Can children use a neti pot?

Only if a pediatrician recommends it, according to the FDA. Very young children may not tolerate rinsing.

Is a neti pot better than a saline spray?

The Cochrane review included several delivery methods and couldn’t say which volume or strength of saline works best, so choose the one you’ll use correctly and keep clean.

Sources

• Head K, Snidvongs K, Glew S, et al. Saline irrigation for allergic rhinitis. Cochrane Database Syst Rev. 2018;6(6):CD012597.
• U.S. Food and Drug Administration. Is rinsing your sinuses with neti pots safe? Content current as of April 28, 2025.
• Centers for Disease Control and Prevention. Preventing Naegleria fowleri infection. July 16, 2025.

Last reviewed: October 21, 2026.