The B group of Vitamins benefits your body in many ways. They can also be very effective to treat your face eczema. A good vitamin B complex helps treat your eczema by increasing cell reproduction. This means that your skin can heal itself and make new skin cells more quickly. Vitamin B12 has been known to increase the longevity of skin cells, making them stronger and more able to resist the damage from eczema. Scientists have observed that people with facial eczema tend to be deficient in Vitamin B6 and Biotin. If you want to help heal your facial eczema more quickly, make sure there is plenty of Vitamin B in your diet.