Hello,
I cannot confirm anything without examination but one possibility is of
seborrheic dermatitis.
Seborrheic dermatitis is a common skin condition that causes flaky,dry, white to yellowish scales to form on oily areas esp under the nose or anywhere on face.
The other possibility is of alopecia totalis, ( in this there is hairfall of scalp as well as eyebrow and eyelashes), blepharitis especially seborrhiec blepharitis, icthyosis or leprosy.