It's a red mark, looks like a burn but it isn't, it appeared in the shower in the time it took me to wash her hair and for her to turn back around to me to rinse her hair
She didn't touch her face in that time, didn't bang it, scratch it, nothing!
It isn't sore or itchy, she wasn't even aware of it until I took a picture
It's still there now even after she's dry and cooled down so not a heat rash which was my first thought
Any idea what it could be??