Prior to shampooing, I apply clobetasol proprionate topical solution to my scalp. It is a steroid solution that brings down the inflammation.
For shampoo, I sometimes use Neutrogena T/Sal, because the salicylic acid loosens the plaques.
Primarily, I use DevaCurl No-Poo, made by Devachan, a salon in New York City where they work only with curly hair. The shampoo is wonderful. It is sulfate-free, produces no lather, it doesn’t dry out the hair and restores the hair. I also use their conditioner, DevaCurl One Condition.