Small Dry Red Scabs, What are they?

[Firehawk]

When I run my fingers through my hair I occasionally feel a crusty tiny bump on the temples or vertex (back top) of my scalp.
If I pick it off, it doesn't hurt and it's usually a small crusty red cluster/dot.
What is this? Is it normal?

I don't use conditioner, only Head and Shoulders Volumizing anti-dandruff. My natural fine hair looks better without conditioner.

Any help will be appreciated.

 

[Diffuser44]

I get acne on the top of my scalp. Could be temporary from drugs.