Yes. There is robust and well-researched evidence that acupuncture can provide a real benefit for the short-term relief of low back pain. Indeed, NICE, the body which makes recommendations to GPs about what works in practice and is cost effective, now includes acupuncture in its list of treatment options for the temporary relief of low back pain. Many conditions can take a while to improve, and your practitioner will regularly review your progress. Many back problems can be exacerbated by the kinds of work that people do, and you may well need to address a number of issues like workplace layout, diet, and general lifestyle to help the acupuncture to work.