Yeast infection in buttcrack?

Platyperry

Sorry for this expletive title 😂 but my baby has this condition in her butt crack. It doesn’t go away after I heavily Vaselined it first thinking it was peeled skin. It’s like a bunch of peeled skins but it’s not... I googled online but the closest I could find suggest it’s an yeast infection. Anyone has similar experience? Thinking of going to a doctor but want to minimize outings in this pandemic. tIA!