Thanks for the query. This presentation can be seen with many skin diseases. The best option is to consult a Dermatologist in person to understand the problem and get it diagnosed. A proper treatment can then be started. Discuss the situation and hope it will be cleared in few days. Don't delay the appointment. You can use a bland moisturiser till then. It does not look like a vitiligo from the photograph but can be said so with more confidence by a consultation. There are certain ways to easily identify if it is vitiligo or not. A Dermatologist should be able to help you