Allergic to new diapers??

Ok moms would you mind showing me pictures if you have them...when your baby was allergic to a new diaper? I’m trying to figure out if my daughter is allergic to hers or if this is a yeast infection on her butt. I’m waiting for the nurse to call me back. And did the allergic reaction show up after the first diaper or after a coupe days?? Thankssss!!!!!