i got a rash as well, and i attributed it to the hops extract (i also have a sensitivity to beer, although i still drink it of course). i've been avoiding hops in my products, and i've been rash-free. i also still use the devacare low-poo, but i think the shampoos have less of the hops extract. hth.
2b/c wavy modified CG since July 2012
medium texture, normal porosity, normal elasticity
hair likes protein, doesn't like oils, easily OC'd

low poo: JCHCC, CJGCS
RO/co-wash/LI: YTCarrots, DB Pumpkin Seed
stylers: a bunch of stylers that are all pretty much the same (KCCC, UFDCM, CRCM, CKCJ) or ArcAngel if I need more hold