I have been having lower lumbar pain for about 3 months. What is a good way to ease my pain?

What is the cause? Most people experience some low back pain in their lives. A simple strain should respond to moist heat, stretching, core strengthening (when possible) and low impact aerobic activity (swimming, elliptical, biking). Some require more extensive rehabilitation via physical therapy and chiropractic. Not responding? See your doctor for non musculoskeletal causes.