rash after vitamin b12 injection I thought this would be an impossible case., Sara has a health condition that requires a every 3 weeks—a tough challenge for acne-prone skin, as B12 is notorious for causing Common & Rare Side Effects

Une carence en vitamine B12 peut galement tre cause par une diarrhe chronique

Everyone needs a little help from outside sources in order to generate this nutrient-rich substance

B12 is involved in hundreds of biochemical processes

After getting a B12 shot, you should watch out for these symptoms and see a doctor if you have: Strong pain where you got the shot Some stomach upset Feeling swollen Skin feeling itchy for a while In really rare cases, there might be more serious risks like: A severe allergic reaction called anaphylaxis Fluid build-up in the lungs Heart problems Blood clots in the bodys blood vessels A type of blood cancer, called polycythemia vera