Hello,, it is pretty common to see backache in women after abdominal surgery or c-section, or any abdominal surgery,, due to adhesions after recovery from procedure. Taking tablets will not help you over longer duration, which only give you side effects, what you have to do to get long term benefit is,, visit a physiotherapist learn some lower back strengthening exercise which can be done at home,, which gives you best benefit over longer duration if you practice then at home daily.