Iam suffering from lowback pain for 3 years what should i do to get rid of it?

A lot!: Lifestyle changes are important like not smoking, weight control and regular exercise. You can use medication if no contraindications like ibuprophen or naproxen, try a back support, guided exercise & activity modification. If no better, then see your doctor for further evaluation and treatment. 90% of back problems are treated without surgery.