Any tips? (Hair/scalp care)

Didn’t want to over load w pictures so I’ll just post this one. My scalp has always been like this. And, no It is not itchy only sometimes but when I do scratch bc I know it’s there lol there are scabs all over as you can see sometimes red after I pick them (sorry can’t help it sometimes) but it’s all around my scalp. Sometimes really dry on the crown of my hair as well. It’s like never ending sometimes I’ll go without even seeing dandruff for a while... than boom a flare? Or whatever it is. Just need some tips or what to do 🙂