Use pain'relieving gel like volini gel or diclofenac gel.
Use hot water bag or ice pack three times a day.
Start doing back Strengthening exs and Stretching.like
Pelvic bringing, core strengthening, straight leg raise, static glutes, static quadriceps as well.back stretching., Hamstring stretch,calf stretching as well.with back legs are also important.
Check with your mattress as well use firm mattress.
Make changes in your lifestyle as well . check your posture during work.
Next Steps
avoid long sitting.
avoid forward bending.
avoid lifting heavy weight.
use pillow under your back while working or sitting.
take a break inbetween your work time.
Health Tips
further details information please consult online with physiotherapist with practo app