"SUN does NOTHING. Maybe for psoriasis, as it is vitamin D (maybe, I do not have the condition), but not for S.dermatitis."
That is in your experience. For others like myself, sun is one of the best things for seb dermititis. Sun and humidity and sauna is the best. When winter comes, so does my sd. Also washing daily or more is a must for me or the oils just pile up and the dermatitis worsens. It isn't really what I eat that makes it worse either, since I have been on many different diets, it is hormonal with me as it started at puberty. I could say that the less I eat the better it gets, so probably have a problem filtering through the liver or kidneys. Also runs in the family on my mother's side as she has it and her father had it.