J.S.
Awww, poor thing! I'd hate to say it, but it may end up happening every time she starts teething! All of my kids would get terrible diaper rashes with every single tooth they cut! It was awful hearing the pain they were in. But, like you, my pediatrician just kept on prescribing stronger diaper rash cream. I know it may be messy, but you could always keep her diaper off as much as possible while she is awake. That's what I've had to do in the past.