Help!!! Boils? Or something else?

Ka

Idk why but my daughter who just turned 1 keeps getting these boils and a rash on her butt... I give her a bath every night to soak it and change her disposable diapers often (she used to wear cloth but that made it worse for some reason)...

this mama doesn't know what to do.

She's been on one round of antibiotics and that stopped the first outbreak and now they are coming back :(

Help!!