Low-level laser therapy effective for neck pain

It doesn't feel at the time like anything is happening, but can non-cutting (non-surgical) laser light be therapeutic? The authors of this paper that was recently published in The Lancet reviewed 16 randomised controlled trials of low-level (cold) laser therapy including a total of 820 patients. They conclude: "We show that LLLT reduces pain immediately after treatment in acute neck pain and up to 22 weeks after completion of treatment in patients with chronic neck pain."