Low back pain is one of the most common reasons for all physician visits in the U.S. Most Americans have experienced low back pain. Approximately one quarter of U.S. adults reported having low back pain lasting at least one day in the past three months. Pain is categorized as acute (lasting less than four weeks), subacute (lasting four to 12 weeks, and chronic (lasting more than 12 weeks).
“Physicians should reassure their patients that acute and subacute low back pain usually improves over time regardless of treatment,” said Nitin S. Damle, MD, MS, MACP, president, ACP. “Physicians should avoid prescribing unnecessary tests and costly and potentially harmful drugs, especially narcotics, for these patients.”
https://www.acponline.org/acp-newsroom/american-college-of-physicians-issues-guideline-for-treating-nonradicular-low-back-pain