Can magnesium help me with sore back?

I doubt it,: but try it and see if it helps..You might try advil or aleve (naproxen).

Magnesium Use: Magnesium is getting popular in the medical field and it is getting used more now in different medical conditions. There is a limited study about the use of the injectable form to numb the nerves in the back in certain condition. BUT, there is a concern regarding the possible toxicity effect of it on nerves in the above mentioned form, and it is being checked. Answer is that it might not help.

Unclear: There are at best limited studies showing a definitive effect with magnesium for back pain. Moreover, the consistency of the formulation is poor, and thus it isn't at all clear whether taking something today is equivalent to that purchased tomorrow. Please discuss taking pain medications with your doctor that have data supporting use in your particular issue.

Unlikely : There is perhaps some limited scientific evidence for muscle spasms (controversial) if that is the cause of your back pain but not a standard treatment. Suggest doctor consult. Can then test for magnesium deficiency if dr thinks likely and if low supplement plus if not likely will then be able to diagnose the cause of and help you manage your back pain. Good luck