Scalp Rash What Is It And How Can I Get Rid Of This Scalp Rash?

What is it and how can i get rid of this scalp rash? - scalp rash

For about 2 years I had a rash with patches on the scalp. that dry, itchy and when I scratched, they bleed when touched or sensitive skin later thick white dry dandruff few days. I have the shampoo and the fight against drug prescription and under supervision of the breakthrough, but it will not disappear forever. the best thing I used to control the scaling, etc. Olux foam. Can anyone help? Thanks