Dear sir
Most common reason for back pain is mechanical, which is due to load on the joints, disc and muscles, which will get better with medicines
As your pain is not getting better with medicines you can do two things
1. If your pain is not at all getting better then you can go to a doctor or take video consultation
2. If your pain getting better slowly then physiotherapy (back strengthening exercises, core exercises)
Next Steps
avoid prolonged sitting
avoid bending forward and lifting weights
can use a gel and hot fermentation
Health Tips
if pain persistent, not at all better then x ray