Instead of going with something stronger, I'd actually back up and see if removing things from her routine will cause less irritation. (askmoxie.org)
We're taking 10 to 25 times less irritation here! (primandprep.com)
Not only is this baby gift set stylish, it also offers convenient features for parents such as 4 snaps at the crotch of the romper for easier changing and full snap on front for easier dressing; easy - on, easy - off bib and tag-less care label for less irritation. (babymilano.com)