Hi there ...
Your query seems pretty straightforward.
However the suggestion may not be.
A lot more medical & personal history details are required together with some clear pics for a definitive solution.
Do feel free to Connect via Instant Consultation ONLINE.
Health Tips
Do give an OTC product like Dove 🕊️ anti dandruff shampoo a trial...specific answer to your specific question.
Apply on wet 💧 scalp before 🚿 and leave in contact for 5-10 mins before rinsing off.
Good Luck 🍀