help - mmr reactions anyone??

B❤
So I'm beginning to think maybe this wasn't the flu. She got her 1yr shots on sept 28. This rash has appeared over her chest/stomach/lower areas. She had a high fever a few days before this. She goes to dr at 1:40. 
I'm about to panic I feel like. I just hate this for her. I've read this could be a reaction or is it measles??