While the DH rashes are most definitely clearing four months into a gluten-free diet, I still have an itchy scalp, and a friend suggested a showerhead filter might help. Apparently impurities and chlorine in water can aggravate (or even cause) dry or itchy skin conditions, especially in hard water areas.
I am still experimenting with gluten-free shampoos and conditioners to find one that helps (as detailed in a previous thread), but wonder if this might also be worth a try. Does anyone have any experience of these filters? And, more importantly, do they work?