How do I treat pulles ligaments in the lower back?

Diagnosis first. It is unusual to have back pain that stems only from pulled ligaments, so your first step should be to see a spine specialist (often, a physiatrist) to determine the diagnosis. If it is truly a pulled ligament, it will usually improve with time, physical therapy, and strengthening of the muscles surrounding the spine and core. Depending on the location of the ligament, prolo therapy may be option.