LLLT may be useful in the treatment of both acute and chronic neck pain.[5] In neck pain the benefit was not of significant importance and the evidence had a high risk of bias.[17] A 2008 Cochrane Library review concluded that LLLT has insufficient evidence for treatment of nonspecific low back pain,[7] a finding echoed in a 2010 review of chronic low back pain.[8] A 2015 review found benefit in nonspecific chronic low-back pain.[18]