kind of explains the problems that people with trich face. Part of the problem, of course, is that trich is psychological disease, but it may also be a skin allergy-- if it's an allergy, then treatment should include using only shampoos that inhibit or at least discourage growth of the material that causes the allergic reaction.
"[The list of bad foods] includes, among other things, concentrated
natural sugars, tomato seeds, soy products, yams, MSG, and ibuprofen.
However, there are a few "good" foods, which partially counteract the "bad"
ones. They include garlic, most acidic fruits, dry red wine, unsweetened
yogurt, and a chemical family called gluconates."
"Some other preparations we tried were pure aloe vera gel, benzoyl peroxide,
and camphor. Terri's barber suggested the aloe vera gel as a skin conditioner
to soothe and protect her scalp after shaving. She also tried a lanolin-based
product, but that resulted in intense itching within 30 minutes of being
applied to Terri's scalp, whereas the aloe vera gel seemed to help reduce what itching there was. The benzoyl peroxide worked well for an intense itching area where there was inflammation and a distinct raised area on the skin, but it was very drying to the scalp and it bleached the emerging hair. (Along the way, I discovered that benzoyl peroxide also stopped, within a week, one of my own year-long bouts with skin picking.) But with further experimentation we found that camphor spirit topically applied would alleviate itching for several hours without adverse effects. Camphor is also contained in Sea Breeze astringent, which we found useful and mild enough for general routine application." They found success with a bentonite clay (for the scalp) as well as great success with Cuticura soap (which may not be an option here).
"Avoid applying fatty alcohols, especially "-yl" alcohols (cetearyl,
cetostearyl, cetyl stearyl, stearyl; possibly cetyl) as in:
conditioners, deodorants, hand and body lotions that contain them."
Essentially, I'm looking for a shampoo (and preferably a conditioner) that isn't going to leave residue on my hair, is astringent, and has none of the "-yl" alcohols in it, but which will also not dry out my skin so much that I start itching again-- tough one, eh? Right now, I'm using Doc Bronner's tea tree formula with white camphor essence oils dropped in. I've also done a basic soap-based shampoo wash with a rinse of camphor and tea tree oils.
For a bar soap, same thing-- I have the same condition on my face and possibly developing on my stomach. This condition is systemic (it's an allergic reaction to a skin yeast).
It might be easier to just buy the combination of soaps and shampoos they recommend, but.... if I can get it all in one dose, I'd be such a happy happy girl....