“The researchers found that only one treatment — the use of nonsteroidal anti-inflammatory drugs, or NSAIDs, like ibuprofen and aspirin — was effective at reducing short-term, or acute, low back pain. Five other treatments had good enough evidence to be considered effective at reducing chronic low back pain. These were exercise; spinal manipulation, like you might receive from a chiropractor; taping the lower back; antidepressants; and the application of a cream that creates a warming sensation. Even so, the benefit was small.”
Sometimes lower back pain can be caused by a cramped muscle. A chiropractor will not help you with that. A good massage might. You can even sometimes use a massage ball against a wall and get the cramp out in a few minutes at almost no cost. Just work it in there gently and press the ball into the pain spot. It should be the good kind of hurt, no more.
Don’t do this with a herniated disc, it’ll just make it worse.