If you have acne as a side effect of high androgens due to obesity, it would be the best thing for your skin.    Eczema miiiight be treated with the right dietary oils:  http://umm.edu/health/medical/altmed/supplement/omega6-fatty-acids I dunno, but I cured my husband's eventually.  Took a number of years.  He had two terrible skin conditions when we met (severe eczema and a foot fungal infection from hell from being from a culture with a casual approach to hygiene), and I got them all cleared up eventually.  Fungal infection took me bullying him into getting the oral fungicide, but it totally worked and was so worth it.  Among other things, I told him that if it ever spread to me, I'd chop off his feet.  He believed me.  He should have.