Long-term Nasal Saline Irrigation: Helpful or Harmful?

For many people with obstructive sleep apnea, nasal congestion and chronic sinus infections are a common problem. Nasal irrigation with saline is a natural way of clearing nasal and sinus passageways. The Neti-Pot is a yogic variation of saline irrigation that became much more popular after Oprah’s recommendation. Many of my patients that have tried this method report good results, with better breathing and less sinus pressure and headaches.

 

A recent study showed that contrary to popular belief, irrigating the nose on a daily basis over a long-tern period may actually make things worse. Researchers studied 68 people who used nasal saline irrigation every day for one year. In those that stopped after one year, 62% had a significant drop-off in the number of infections, compared with those that continued irrigating their noses. 

 

The authors of the study proposed that the likely reason for this finding is that frequent irrigation depletes nasal mucous, which contains several important defense mechanisms, including antibodies, lactoferrin, and lysozyme. It’s also known that the nose produces nitric oxide, which also has antimicrobial properties. 

 

These results are a bit conflicting with what many of my patients report, but there may be some good reasons to follow their recommendations. Besides the reasons mentioned above, saline acts as a mild decongestant, which is similar to the over-the-counter decongestant, Afrin, but not as strong. This is why you can breathe better after irrigation. One of the reasons why you can’t use Afrin for more than 3 days is because of the rebound effect, where after the medicine wears off, your nose gets stuffy again, making you use it more and more frequently. Nasal saline, although not as bad as Afrin, also has a mild rebound effect. This is why some people use it 2 to 4 times every day.

 

It’s also been shown that if the salt concentration is a bit saltier than your nasal membranes’ concentration, the cilia that help to move the mucous blanket down into your throat become paralyzed.

 

If used for short-term periods, such as during an acute sinus infection, it can be useful (just like Afrin), but this study’s result shows that long-term use may be more harmful.

 

My feeling is that if you feel better and you don’t get as many infections, keep doing it. After a few weeks or months, you can experiment by stopping the irrigation and see what happens. 

 

Since this study didn’t look at cultures or x-rays, there’s no proof that these were true bacterial infections. Recent studies also show that the vast majority of what may feel like sinus infections are actually a variation of a migraine headache. Furthermore, it’s been shown that nasal saline doesn’t really go into your sinus passageways. It works by decongesting your nasal passageways, which indirectly opens the passageways to your sinuses.

 

Do you irrigate your nose with nasal saline every day? If so, for how long? Are you having less sinus "infections" as a result of irrigating on a regular basis? Please enter your answers in the comments box below.


Please note: I reserve the right to delete comments that are offensive or off-topic.

Leave a Reply

Your email address will not be published. Required fields are marked *

56 thoughts on “Long-term Nasal Saline Irrigation: Helpful or Harmful?

  1. Also….I put coconut oil inside my nostril after each irrigation. If I don’t it gets dry but if I don’t irrigate the snot is like glue it’s so dry. I’ve been doing this for years, daily and I went from bimonthly infections to one every year or more. I usually avoid petroleum jelly. I use a qtip ….or my pinky (then wash my hands) I put coconut oil(or castor oil) in the first part of my nostril a few minutes after each irrigation. I only use a little bit, just a tiny bit to keep it moist…too much and the excess just runs. It’s helped me so much.

  2. I have been using “simply saline” quite often even though my nose often feels more dried out and I have more trouble breathing afterwards. Then about a short time later my nose becomes filled with caked dried blood and I really can’t breathe. Then I remove the dried Kate blood and the vicious cycle resumes. Perhaps I should just leave it alone and let nature take care of it. Thank you for your article.

  3. Dr. park,
    Thank for the free book. I only just downloaded it at 3am this morning. I only happened upon your site from another dental site. I have had sinus issues for a number of years, and have in the last 15 or so years been snoring. It’s not my weight,, Doctor confirmed. I have also had dental issues, which are now in the process of being fixed. Last fall, I lost my upper left molar, farthest back, and it seams that I am experiencing nasal/sinus problems. Along with that, I have had to take 3 rounds of Amoxicilin in order to clear up a nasty infection in my lower jaw. I friend had told me about getting a Nety pot to flush my nasal passages, but I can’t seam to bring myself to stuffing something up my nose. I am currently having all cavities and bridges taken care of, but really would like to take care of the snoring issue, found your site, and ebook. My husband says I don’t stop breathing, but I snore, even with my mouth closed. If I sleep in a reclined position, not flat, then I don’t snore, but it’s not very comfortable. Look forward to reading your book.

  4. 2-3 sinus infection a year until irrigation with salt water. Started on a daily schedule for several years. Than went to Monday Wednesday and Friday schedule. Presently only irrigate twice weekly. PROBLEM SALVED no more sinus infections.

  5. I have had frontal headache, head congestion, irritation in my nasal passage (one which is deviated) and several other vague and various symptoms for nearly a decade. I don’t have typical sinusitis. CT scan showed ‘minimal mucosal thickening’, which rules out sinusitis. ENT said I’ve allergic rhinitis.
    Meantime, I’ve been doing jal neti three times a day. Its now been 7 years. I do it more often if I have severe headache at night. I get good to mild relief for few hours at least after neti. I seem to have become dependent on it. Even slight exposure to AC in confined space brings on congestion & headache. Fluticone FT spray helps, but I understand one should not use it more than 3 months a year.
    My lifestyle has been affected and limited. I do not see any other solution.
    Please suggest if immunology treatment could help.

  6. About nasal irrigation, as a user of CPAP, I consider it indispensable. It is a soft way to clean the nasal via. As long as one keeps all clean, one believes there is not problem. After reading this and think in it again, perhaps salinity may cause some mucose damage, but it comes to surprise if salt concentration is the same as the one used in physiological solution. After reading the above, I will take care of using a bit of sodium carbonate to increase PH, Also, I do prepare my own solution with cooking granular salt. That salt my come with bits of added iodine and fluor. After years, that does not appear to cause me any trouble when awake, but I will take care of this. However, the CPAP cause me nasal valve collapse, frequently but not always. It looks random. The probability of the swelling increase with the time of CPAP usage, which is very low in the first three or four hours. Another factor to consider is inhaled vapor/air temperature and the purity of the water used in the CPAP humidifier, for example, I understand in some countries distribution water has fluor and/or chlorine added, while in my place, city water is very hard and alkaline. So, consider using only purified water in the humidifier.