I did not have this with hair but did with my skin. Not just dry but shedding off. I never had skin problems pre rsd. The skin has gotten a lot better though I still have flares. Though I feel it was from rsd cause I see connections in flares sometimes anyhow I did go to the dermatologist who rx some meds and it did help to a degree. Now I manage it with lotions mostly. Though it is from RSD have you thought of seeing a dermatologst? Maybe they have seen similar in non rsd patients but the treatment may help you. Hopefully maybe your dermatologist will know about rsd though if you go. Sorry I wish I had more answers. The body with rsd does some odd things that before I faced them would of never thought of. Feel better