dear friend you can take aceclfenac with combination of paracetamol.if severe you can also take muscle relaxant combination such as aceclofenac+paracetamol+chlorzoxazon if needed.in your case physiotherapy and exercise will help you a lot on long term basis. -exercise for low back pain- raise your leg sraight from hip joint without bending from knee after sleeping on back and then put down slowly. same exercise for another leg and then raise both leg simultaneously. sleep on abdomen and raise your head and chest backward. do all these exercise 40-50 times per day by increasing slowly everyday. hope this answer will be helpful to you. for more queries plz don t hassitate to ask. get well soon dear friend dr.manu khimani