Red light therapy
Emerging evidenceWhy it might help
Red and near-infrared light is absorbed by mitochondrial cytochrome c oxidase, which may reduce local inflammation and modulate pain signaling around an irritated nerve root.
What the research shows
A double-blind randomized trial in discogenic lumbar radiculopathy found low-level laser (light) therapy added to physiotherapy improved pain and disability more than physiotherapy alone, though evidence is limited to small, single trials.
Source & what it found
Effectiveness of Low-Level Laser Therapy in Patients with Discogenic Lumbar Radiculopathy: A Double-Blind Randomized Controlled Trial — Medicina (via PMC), 2022
830 nm laser as an adjunct to physiotherapy significantly improved pain intensity and functional disability versus physiotherapy alone.



