How Nasal Dilator Strips Improve Snoring and Sleep Apnea

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If you are looking for ways to stop snoring, you may be interested in learning how over-the-counter nasal dilators like Breathe Right strips can help improve your breathing during sleep.

Couple in bed and the man is snoring
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These nasal dilators work by opening the nostril or nasal passage to improve airflow through the nose, but are they right for you? Can they relieve sleep apnea? Learn more about these devices and whether they would be worth a try.

Basics of Nasal Dilators

There are two types of nasal dilators: those that open the nostrils or nasal passage from the outside and those that dilate the nostrils from the inside.

The external dilator often consists of a stiff strip that is applied to the outside surface of the nose with adhesive, much like a stiffened Band-Aid. One popular brand is Breathe Right nasal strips, though others certainly exist.

Nasal dilators work by pulling the nostrils and sides of the nose open, much like lifting the sides of a peaked tent to make more space on the inside. This can help to ease breathing through your nose and may reduce snoring.

This most likely occurs due to increased airflow through the nose. Ideally, a river of air would enter through a fully open nose, pass through the throat and past the base of the tongue, and enter the lungs.

When obstruction occurs in the nose — due to narrowness from anatomy, a deviated septum, or congestion from a cold or allergies—a trickle or stream of air enters instead. This airflow becomes turbulent, much like a shallow and rock-filled stream.

As a result, the tissues lining the throat (especially the soft palate and uvula) may vibrate and cause the sound of snoring. With the use of a nasal dilator, the amount of air that enters the nose can be increased and the turbulent air movement stills.

Do Breathe Right Strips Reduce Snoring?

A study of 30 snorers found that an external nasal dilator, similar to Breathe Right strips, is effective in reducing the intensity of snoring as measured by a sleep study, or polysomnogram, in 73 percent of people.

These dilators worked best if the snorers did not have another condition affecting their breathing during sleep, such as obstructive sleep apnea.

Other studies have found more mixed results in how effective these treatments can be. A comprehensive literature review found no improvement in sleep apnea and a small improvement in snoring when Breathe Right strips were used.

Side Effects of Breathe Right Strips

Aside from a possible skin reaction from the adhesive used with the external nasal dilators, or injury to the skin with the removal, there are likely few risks for adverse side effects with either of these types of products.

Though nasal dilator strips may improve snoring, they do not treat sleep apnea. Using the strips to reduce symptoms may give a false sense of confidence in the effectiveness of the therapy.

Other Devices to Open the Nose

Another alternative is an internal nasal dilator, which is a plug inserted into the nostrils that remains in place during sleep. A literature review found that internal dilators showed a slightly larger improvement in snoring as compared with the external nasal strips.

There is also a prescription option called Provent and a similar non-prescription variation called Theravent. After drawing air into the nose, these reduce the amount of air exhaled. They try to create an increased volume of air in the airway to help stabilize it, thus reducing the vibration of snoring.

If Snoring Persists

In general, nasal dilators are easy to use and they may be a reasonable option in those who snore despite attempting other conservative treatments. They may be worth a trial to see if they are helpful. However, nasal dilators may not be right for you, especially if you have sleep apnea.

What are some other ideas? Consider these options:

  • Allergy treatment (nasal steroid sprays like Flonase, Nasacort, Rhinocort, etc. or oral allergy pills such as Allegra, Zyrtec, Claritin, Singulair, etc.)
  • Myofunctional therapy
  • Nasal saline spray
  • Positional therapy (sleeping on the side)
  • Raising the head of the bed
  • Saline rinses (via Neti pot or alternative)
  • Surgery performed by an ear, nose, and throat (ENT) specialist 

If you have persistent snoring, witnessed pauses in breathing, gasping or choking, or other symptoms or signs of sleep apnea, talk to your healthcare provider about further evaluation.

It may be necessary to undergo a sleep study to identify the condition. Treatment may include the use of continuous positive airway pressure (CPAP) machine, an oral appliance from a dentist, or even surgery on the nose or throat. All of these may completely eliminate snoring. 

A Word From Verywell

If you have persistent snoring, you should seek additional medical evaluation. For more information, speak with your doctor who may refer you to a board-certified sleep medicine physician for testing and definitive treatment.

5 Sources
Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
  1. Camacho M, Malu OO, Kram YA, et al. Nasal dilators (Breathe Right Strips and NoZovent) for snoring and OSA: a systematic review and meta-analysis. Pulm Med. 2016;2016:4841310. doi:10.1155/2016/4841310

  2. Todorova A, Schellenberg R, Hofmann HC, Dimpfel W. Effect of the external nasal dilator Breathe Right on snoring. Eur J Med Res. 1998;3(8):367-79.

  3. Ward J, Ciesla R, Becker W, Shanga GM. Randomized trials of nasal patency and dermal tolerability with external nasal dilators in healthy volunteers. Allergy Rhinol (Providence). 2018;9 doi:10.1177/2152656718796740

  4. Ramar K, Dort LC, Katz SG, et al. Clinical practice guideline for the treatment of obstructive sleep apnea and snoring with oral appliance therapy: an update for 2015J Clin Sleep Med. 2015 Jul 15;11(7):773–827. doi:10.5664/jcsm.4858

  5. Guzman MA, Sgambati FP, Pho H, et al. The efficacy of low-level continuous positive airway pressure for the treatment of snoring. J Clin Sleep Med. 2017;13(05):703-711. doi:10.5664/jcsm.6588

Additional Reading
  • Hoffstein, V et al. "Effect of Nasal Dilation on Snoring and Apneas During Different Stages of Sleep." Sleep 1993; 16:360.
  • Meoli, AL et al. "Nonprescription Treatments of Snoring or Obstructive Sleep Apnea: An Evaluation of Products with Limited Scientific Evidence." Sleep 2003; 26:619.

By Brandon Peters, MD
Brandon Peters, MD, is a board-certified neurologist and sleep medicine specialist.