It can be due to dermatitis skin, seborrheic dermatitis or rosacea skin. 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. Rosacea is a cutaneous disorder primarily of the central part of the face , such as forehead; cheeks ;nose; and chin which causes redness and dryness of skin.
I suggest you to get it examined from a dermatologist as it needs a physical evaluation and maybe a biopsy skin to confirm the diagnosis.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
Thank you for your input. I will ask my Doctor if he recommends a Dermatologist.