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Red light therapy during chemo: what I did with FlexBeam

Alessandra MarraBy Alessandra Marra · Updated 12 November 2026 · 5 min read
Some links in this article are affiliate links. If you buy through them I may earn a small commission, at no extra cost to you. I only link to things I actually used.

Nobody on my medical team brought up red light therapy. Like most of what helped me, I found it myself. During chemo I wanted one thing I could do for my body every day, instead of only having things done to it.

That became 20 minutes of red light, every single day.

What red light therapy is

Red light therapy, also called photobiomodulation, means shining specific wavelengths of red and near-infrared light onto the skin. It's painless.

Why I chose FlexBeam

I wanted something I could use at home, every day, without driving to a clinic. FlexBeam is a small wearable device you strap onto the part of your body you want to work on. I could use it while doing something else, so it fit into every single day.

My honest verdict

I can't tell you what red light did inside my body. Nobody can prove that from one person's story. What I can tell you is what it was for me:

Something I did for my body, not to it.

I used it every day through treatment, and I still use it every morning now. If you're in treatment, I'd ask your team before using any device, especially near a port or a treatment area.

Where I placed it, when, and for how long is what I get asked about most. My AI Self walks you through exactly what I did.

The one I use: FlexBeam (affiliate link).

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I'm sharing what worked for me. This is my personal experience, not medical advice. Talk to your doctor about what's right for you.

Alessandra Marra

Alessandra Marra

Diagnosed at 40 in Chiang Mai, two years cancer free. Not a doctor: the friend who's been there. Questions at 2am? Ask my AI Self

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