In today's NY Times, there is an incredible article about S.A.D. by science writer Ingfei Chen. It touches on the role of staph in exacerbating the eczema, the need for soothing baths, the role of antibiotics in treatment and more. Ms. Chen's article could be a primer for starting to learn about SAD.
In some way, SAD, and related inflammatory dermatoses, are orphan diseases. At present, they don't have really expensive therapies that would induce drug companies to throw money at them (for secondary gain). These patients take time and are very complex, and we dermatologists want to see a new patient everey ten to fifteen minutes.
If you want to start to understand S.A.D. please read this article. It can be accessed at Permalink.