Hi welcome to the health care magic You are having back pain complaint Stone or UTI suspected if along with back pain , urine burning like complaint also present... USG scan will be beneficial in identifying any organic cause, if present This pain mostly seems to be muscular strain pain.. For that ibuprofen can be taken for five days Muscle relaxant if needed can be given Avoid heavy weight lifting, prolonged standing, bending etc.. Hot compression useful Physiotherapy also beneficial Take care Hope your concern solved If improvement not seen orthopedic surgeon consultation for examination needed