For blood clots in the leg, compression stockings are commonly recommended
Joint discomfort associated with B12 supplementation is uncommon and not listed amongst the recognised adverse effects in the Summary of Product Characteristics (SmPC) for licensed B12 preparations or in the British National Formulary (BNF)
The healing slowdown that accompanies aging relates partly to declining growth hormone levels, reduced blood flow, and less efficient inflammatory responses
Reference Links Nikhil Vasireddi, Henrik Hahamyan, Salata, M
Pale or jaundiced skin , often linked to megaloblastic anemia from inadequate B12
Both methods can be effective, but if you want faster relief for knee pain , a localized injection is ideal