Sometimes disc bulge takes long time because of being chronic. Physiotherapy helps but needs patience.
Next Steps
Go to a physiotherapist.. Ultrasonic therapy +IFT +Heating therapy +traction (may require) +some strengthening as well as stretching exercises will be helpful for sure.
Health Tips
At home.. Rest +hot water fomentation +pain killer gel +no long sitting /standing /walking /travelling /driving +no cold exposure +no manual exertions +no weight lifting +no jerks +no forward bending +correct posture +sit tall +use lumbo sacral belt.