I use Head and Shoulders, the original one-can't stress that enough! The other formulas actually seem to irritate my scalp-it's probable the other ingredients in it. If you use conditioner too, use HS as well, kind of a double dose.
Dove is the only bath soap I can use. I also use Gold Bond lotion-the kind in the orange bottle, no frills but clears it up for me, without the burning of the creams the doctor prescribes. Emu oil helps alot,too, very healing, anti inflammatory although some people object to using animal based products.
I know it's frustrating when your skin reacts, but patience and consistant use of basic products is the only thing that works for me. Best wishes!