My baby has some diaper rash that isn't going away (we are always super good with putting cream on)…

My baby has some diaper rash that isn't going away (we are always super good with putting cream on) and I think it's the first full blown rash he's had since he was born. He's six months old now so this is puzzling. Still EBF. So I whipped up my own version of breastmilk butt balm. Breast milk, coconut oil, butt paste, and A&D diaper rash ointment melted together. In the fridge now to harden up a bit. We'll see how this goes.