can i have b12 injection and covid vaccine How Often Should Get Shots? A Guide to Your Schedule Vitamin B12 Injections – Benefits
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If you're considering more than one treatment, we'll help you build a plan that fits your goals

It suggests to me that you were given it when you didn't need it and if this is the case I'm not surprised at your skin's reaction
i wonder if this multi dose vial was formulated by your labs..that is ok but i prefer the single dose vials

They contain the same active ingredient and are approved for safety and effectiveness
Iron Symptoms of anxiety often accompany low iron levels
