Greetings. I would appreciate the details of the following - to be sent on follow up messaging - your age, family history of diabetes, your height and weight, and if you are a diabetic; if not have your sugars been checked in the last 3 months.
1. your pigmentation most likely looks like facial acanthosis nigricans
2. however, you need to see a qualified dermatologist for confirmation of diagnosis / and further treatment.
Hope this helps. Warm regards
see a qualified dermatologist near you
Further queries can be sent on follow up messaging