lump at injection site after b12 shot Hard and slight bruise inj Lumps or swelling after your

A clinical series published in the Journal of Clinical Medicine found that patients with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) who received intermittent intravenous saline infusions over a 9-week period showed beneficial effects in managing symptoms of dysautonomia and postural orthostatic tachycardia syndrome (POTS)

[DOI] [PMC free article] [PubMed] [Google Scholar] 114.Sang L., He Y.-J., Kang J., Ye H., Bai W., Luo X.-D., Sun J

If you don't treat your B12 deficiency, it can lead to more severe neurological problems, including: Problems walking or speaking Vision loss Numbness or tingling Muscle weakness Difficulty remembering things Depression or mood swings Treating vitamin B12 deficiency Treatment depends on the reason for your low levels of B12

So, there is no one-size-fits-all answer