Can you tell me about lower back pain just right above the butt crack?

Muscular v disc: This is either muscular if only several weeks. If longer, may be from disc issue that could be a tear in disc or herniation. If muscular, will get better by about 6-8 weeks ; 90% of discs improve over time. Otc meds can help as can heat ;/or ice as well as guided exercise ; activity modification. Lifestyle changes like weight control, not smoking ; regular exercise are key. If not, see doctor.

Support your back: keep your core tight; keep weight down; elevated legs, try tylenol (acetaminophen) or aleve; wear good shoe; firm mattress; see your provider