What is this blotchy rash on my face?

Pityriasis Alba. Most commonly it's a condition called pityriasis alba, a flaky dry white patches on face. However, fungal infection or vitiligo may cause the similar "rash", consult your dermatologists.
Can't Say with this. info. These lesions need to be visualized & a history needs to be obtained in order to make an accurate diagnosis. Sometimes lab testing or biopsy is necessary.
VisualDX. Hi, it’s hard to say without a picture but there is a great app that may be able to help you get a diagnosis without being seen in person by a dermatologist. The app is called VisualDX and is one of the best, if not the best out there. Many clinicians, including myself, use it. Just snap a photo and it gives you a list of possible diagnoses. Good luck!