Mommy advice needed!

Kayla • First time Mommy 8.1.16
My baby face and ears are broken out. Even her back and arms are starting to break out. I was thinking maybe hear bumps because she basically sleeps with me at night and loves being under me and we both sweat. Maybe I need to change whY I wash my clothes in? Any advice? Her face looks so itchy. The doctor told me to try cortisone. Is there a brand for babies?