However, from the description given by you, it seems you might be having an autoimmune skin condition called Discoid lupus
erythematosus, that causes a red, raised rash
on the face and scalp. Around 1–5% of these cases develop into Systemic lupus erythematosus (SLE).
In discoid lupus, only the skin is typically involved. The rash is usually red and may have raised borders. It is usually painless and does not itch.