I've been to a chiroquacker three times. Specifically said leave my neck alone (lower back was issue)...he popped it...went back again per his directions...same thing...next thing I knew the arm was totally numb. Got an MRI...herniated disks..most likely from the chiro (no before pics).
STAY THE $$@# AWAY from a CHIRO-QUACKER. As
@supercorndogs said, go get a GOOD physical therapist. They're going to address the muscle imbalance and strengthen that versus just doing risky maneuvers with your back. I know I'll get static because there are a lot "believers" in chiroquackers. I knew better...had that "feeling" you get when you know you're in trouble...but went ahead after my name was called. Paying the price now. Not worth it. Remember, these Quackers can have a freaking degree in home-economics and just go to a clinic (like in Dallas area) to become a "Doctor."
I'm kinda SOL right now as I have a hernia that needs an operation, so serious stretching for me has been out for a while. But I'm going to venture, if it's the right side lower back, not right on the spine but shortly to the side, you have the same problem anybody who sits at work has...TIGHT (extremely) hip flexors. I shoveled clay two weeks ago and I'm still AFU...but when I stretch and warm up before so to do that stretch - I see almost instant relief until it tightens up again.
You may also want to make sure you're getting enough magnesium.
So my personal suggestion having fought this now for 16 years...1) diet, 2) weight loss (if you're over), 3) P-therapy, 4) REAL massage therapy. Loosen that lower back/glutes up and that hip flexor and you'll be amazed!!!!!