Hello doctors, Almost more than 10 years ago I started having dandruff problem, ever since then I tried various dandruff free shampoos, and few treatment for it but it doesn't helped. Recently I had an haircut where I came to know I have some red parts on all over my head. As I search on, I came to understand it is psoriasis on my head. Please let me know what to do and how to cure the same. Will it also spread to other parts of my body? How to prevent it from spreading. In my family no one has this type of problem so just wondering how come I got this. Please advise on this issue. Thank you