Ideally, I'd like to solve my seborrheic dermatitis through lifestyle and diet modifications, (rather than medicated shampoos etc...) but I'm not sure it's possible.
I've had seborrheic dermatitis all my life. I am told that while I was an infant and breastfeeding exclusively I had the worst case of cradle cap (the infant version of seborrheic dermatitis) people had seen.
Is it possible that I was reacting to something (i.e. gluten) that was making it through the breast milk? (Of course, I've been gluten-free since 2003, and that hasn't solved the problem...)
Could it have been vit-d deficiency? (I have red hair and didn't ever get enough sun until a year or two ago)
Some other diet/lifestyle element?
Am I just genetically cursed with it? (my father has it too - though it could be related to wheat issues which we have learned run in his family)
Or is this a normal part of the human condition? (I noticed a few years ago that dandruff shampoos outnumbered normal shampoos at CVS...)
I want to understand as much as possible about the root cause of the issue. I know it is thought to be triggered by a yeast on the skin (malessizia), but why are some people affected and others not (when presumably it could be on everyone's skin)? What is it that makes me particularly susceptible?
I refuse to believe it's a head+shoulders deficiency...