Has anyone received treatment for chronic back pain?

I have to sit on the bus for a long time during commuting,ㅠ
Lately, even when I sit upright on the bus, my back hurts so much ㅠ
Even sitting properly at work, it still hurts ㅠㅠ
Sometimes these days, I feel pain even when I lie down straight to sleep.
Where should I go to get treatment for back pain?
The Korean medicine clinic was not effective.