goodbye, sleep!

My daughter has the beginning of what looks like a chemical burn from her diapers and my boyfriend is basically pinning the blame on me by saying that it's because she's not being changed every hour on the dot. He's now told me that I need to put 24 alarms on my phone, one for each hour so that I can change her. Am I the only one that thinks that's a bit much? It's not like I'm leaving her to sit in her own messes. Yesterday I changed her and 10 minutes later, she pooped so she got changed right then to avoid sitting in it so I'm failing to see how this is something to blame me for.