Fri, 15 Jan 2010
                                                                    
                                                                      Answered on 
                                                                
                                                                    
                                                                    Fri, 22 Jul 2011
                                                                    
                                                                      Last reviewed on   
                                                                Hi.. Get a skin allery test if you are allergic to the vitamin b 12. If you develop allergy to vitamin b 12 too then you can use antiallergic medication and take the vitamin b 12... I am not sure how feasable this method is, you can ask your doctor if you can follow this if needed...
                    
                                    
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