The only pain meds I use are :
Tylenol
Aleve... I rotate these to reduce side effects...
And
tramadol for very bad nights.

I do use topical things, like Biofreeze more often. Salonpas patches, and sometimes Lidoderms.

If you are very low in B12... 5mg daily would be best for about 3 months, then have another test taken, and if you are high like I am you can reduce. If you are not really low in B12 but just want more, the 1mg should be enough. Be sure to take on an empty stomach, as food messes up the absorption orally.

In people with no intrinsic factor, the oral which is about 500 times stronger than food, will be passively absorbed in 1-10% amounts. The RDA for B12 is 2-4 micrograms, when intrinsic factor is working properly.

Puritan's just offered methyl B12, so I bought some and took for 3 months before my last test. I typically hover around 800 normally. With 5mg daily I tested out at 1999 (which I believe is the max the test can do).