VITAMIN B12 (Cobalamin) - The nerve healer Vitamin B12 is essential for the myelin sheath, which is the protective covering of the nerves. How does it relive pain? - It repairs damaged nerves and regenerates myelin - It reduces homocysteine levels, which can damage blood vessels - It improves communication between the nerves and the brain Deficiency in this vitamin can lead to numbness, tingling sensation, weakness and severe neuropathic pain.