Red Light Therapy for Nasal Passages: Does It Work?

Red light therapy (also called photobiomodulation) uses specific wavelengths of red or near-infrared light to influence cellular activity. 

It’s often promoted for skin health and pain relief, but can it help blocked or irritated nasal passages?

The ideas behind it

Supporters claim that red light may:

reduce inflammation in the nasal lining

improve local circulation

ease congestion and sinus pressure

help allergy-related nasal symptoms

Some devices are used externally around the nose, while others place a small light just inside the nostrils.

What does the evidence say?

The science is limited and mixed. A few small studies suggest possible symptom relief—particularly for allergic rhinitis, but results aren’t consistent, and study sizes are small. 

There’s no strong evidence that red light therapy can treat sinus infections or structural issues.

In short: it’s not a miracle cure, but some people do report mild improvement in comfort and airflow.

What it may help with

Mild nasal inflammation

Hay fever or allergy-related congestion

Post-cold irritation

What it’s unlikely to fix

Sinus infections with fever or facial pain

Deviated septum or nasal polyps

Severe or chronic sinusitis

Is it safe?

Generally low-risk when used correctly, but intranasal devices can cause irritation or dryness. Hygiene is important, and anyone prone to nosebleeds should be cautious.

The bottom line

Red light therapy may offer modest relief for some people with mild nasal inflammation, but it shouldn’t replace proven treatments like saline sprays, steroid nasal sprays, or medical advice. Think of it as a supportive option, not a primary solution.

If symptoms are persistent, one-sided, or worsening, it’s best to speak to a GP.

I use a red light therapy device which I have owned for several years and I have noticed improvements in my nasal passages after use.

They are available from Amazon at around £30 https://amzn.to/4rAl00m