Some things in life can be ignored, and they will improve on their own. Unfortunately, back pain is usually not one of those things.
Back pain is a sign - a symptom - of dysfunction in your body. Your body was not designed to be in pain, your body was designed to heal, be functional, and pain-free. If you have pain, your body is trying to tell you that something is wrong and needs attention.
Think of your body like a car. Your car cannot talk to you and tell you that something is wrong, but it CAN give you a signal. In most cars, the signal for dysfunction is the check engine light.
If the check engine light came on in your car, what would you do?
If you valued your car, you would find out why the check engine light was on, and fix it. You would do that, because you know if you ignore the check engine light, whatever problem caused it to go on isn't going to go away on its own.
The problem is NOT the check engine light. The problem is whatever CAUSED the check engine light to come on. Makes sense, right?
For some reason, many people value their cars more than their body. Their "check engine" light comes on (meaning, they start to experience some sort of pain), and instead of fixing the problem, they take medication or just ignore the pain altogether. Either way, whatever caused the pain doesn't get fixed. So what happens? It gets worse.
Some people ignore it until the entire engine just stops working. And unfortunately, there aren't many options at that point.