Hi! You could be having different variant of dandruff or it could be some other scalp condition. Avoid hair styling products and gels on scalp. Do not keep scalp oiled for long time. Do not share combs etc. Air dry your hair. Avoid using hair dryers. Do not scratch or itch.
Next Steps
See a Dermatologist personally
Health Tips
Do not itch or scratch or try to remove the skin.
Following blog post should be helpful: "Understanding Dandruff" by Dr. Jolly Shah Kapadia - https://www.practo.com/healthfeed/understanding-dandruff-8830/post