Thanks for posting your query.
You may have psoraisis as symptoms mentioned by you. Exact diagnosis can be made only after examination.
, patient may have itchy patches with white scaly and stuff. This lesion is associated with itching and associated with "Koebner Phenomenon".
You should consult with physician and dermatologist
symptoms and itchy lesion may be differnr entity.
Get well soon,
Dr. Mayank Bhargava