Vitamin D3 to help with Eczema

My son has eczema that through careful food logging, were have been able to isolate some trigger foods. He does not have anaphylaxis as we did the blood work to rule that out.

Starting mid- August his eczema randomly increased in intensity, and it hasn't been totally clear to me why.

Coming off a cold my son's eczema was way down - even though diet-wise were both had the same exposure to foods he is sensitive to before. He is flaring a bit today again, but perhaps I was a little too cavalier in what I ate, given his rash was down (I'm still nursing him).

I recently started supplementing myself with D3 and a b-complex. The following article and some other discussions on the Mothering forum, have me wondering if it is possible that D3 could help so much. I would be so stoked if we could get it to a more manageable level - or gone for good.

Use of oral vitamin D supplements may help prevent eczema

Mothering discussion of the above linked article.
http://www.mothering.com/discussions/showthread.php?t=1026192

Anone tried using D3 to treat eczema and seen results either way?