Stubborn scalp psoriasis, help!

Hi everyone, I need some advice on any natural remedies that help keep psoriasis on the scalp at a manageable level please. I’ve tried every medicated shampoo, cream you name it and it’s really getting me down. I can’t remember the last time I wore my hair up and the constant fear of the wind blowing incase people see the dry skin in the side of my hair line it’s embarrassing :( On a more positive note, I did used to have my elbows covered and my wrist but recently this disappeared out of no where. I can’t help but think cutting alcohol out my diet And regular exercise helped with this. If anyone has any tips for scalp psoriasis home treatments anyway let me know it would be much appreciated :) Thanks