I don’t know what to call this but I have found myself scratching and itching my scalp for the past few years during times of stress such as exams. The reason why I do this is because there are these tiny white bumps on my head that I try to pick at and just continue to do so. My hair has greatly thinned and is more oily. What is this condition called? how do I treat it?
I can not address the white bumps you are talking about without seeing you and them. It could be an infection, folliculitis, dermatitis, or even dandruff. You’ll likely want to see a dermatologist for that, as I can’t simply guess as to what it is or tell you how to treat it.
The hair loss you are experiencing in the areas you are scratching is probably traction alopecia. Some people with dermatillomania (compulsive skin picking) can also have trichotillomania (compulsive hair pulling), which leads to permanent hair loss.