can b12 injections cause migraines Headache: The Link Between Vitamin B12 and Headaches Headaches After Vitamin B12 Shots:
Description
In rare cases you may suffer bruising, redness, swelling or itching at the injection site which is normally transient and limited to 48 hours
eLife 8 , e43808 (2019)
(12) But heres the thing with B12its absorption isnt like most other vitamins
2010;11(Suppl 1):S147
B12 Frequency The frequency of treatment also varies
