Laser therapy (low-level laser / photobiomodulation): what it is and what the evidence says
By Dr. Jeremiah Carlson, chiropractic physician · Jacksonville, FL · Reviewed Nov 2026
What to expect
- A short, painless session. You may feel mild warmth or nothing at all.
- You and Dr. Carlson wear protective eyewear.
- Usually combined with adjustments, soft-tissue work, and chiropractic physiotherapy (corrective exercise).
What the research says
A 2009 systematic review in The Lancet (Chow et al.) found low-level laser therapy reduced pain right after treatment in acute neck pain and for up to 22 weeks after treatment ended in chronic neck pain. Results for other conditions are mixed, the right dose isn’t settled, and many trials are small. We tell you that plainly and track whether it’s helping.
Who shouldn’t have it
We don’t apply it over the eyes, a pregnant belly, known or suspected cancer, or the thyroid. Tell us about light-sensitizing medications.
Questions people ask
Does laser therapy hurt?
No. Most people feel nothing or gentle warmth.
How many sessions will I need?
It varies. We re-check your progress after a few visits and stop if it isn’t helping.
Is laser therapy the same as surgical laser?
No. These are low-power lasers that don’t cut or burn tissue.
Want Dr. Carlson to take a look?
Call our Southside clinic or request a call back. If you were in a car crash, take the 60-second check first.