What is this??

Soo my daughter has come down with a bad cold. It was a given since I became sick last weekend. Well today this spot come about on her cheek. It’s only on the one side. She has a runny and stuffy nose along with coughing, & a low fever throughout the day.

I already plan to take her into the urgent care in the morning if it doesn’t go away. Just really curious does anyone know what this is?