I have been experiencing lower back pain for the last three months. over the counter medicine not helping. any suggestions? thank you!

See your doctor : Back pain of 3 months duration requires an examination by your doctor. The possibilities are really endless and only through a detailed exam and better history can a diagnosis be entertained. Once that is done, the proper treatment can be recommended.

Various options: Given length of the symptoms, you should see a spinal specialist who will evaluate you, examine you, get imaging studies including xrays and possibly MRI (if warranted based on your exam) then arrive at a diagnosis as to what is causing your symptoms. Conservative treatments including nsaids, physical therapy, home exercises, and even possibly neurodiagnostic injections may also be needed to help.