I wonder if your little one has very acidic stool or a light skin rash which is irritated by her stool. Maybe you could put a soothing cream on after each "messy" and-over time-maybe your little one will stop negatively anticipating her stool cleaning. With food allergies, has she had a recent new food (wheat, corn, peanuts, etc.) that could be upsetting her stomach and making her stool more acidic? Also, you can use a natural soap on the "hinny" to not over-wash the skin. If you over-wash(harsher soaps or washing too much), the oil that protects the skin from irritants (stool) is washed away. I think, also, that my kids got more fussy at diaper changes if I didn't check as often to see if they were "messy". I hope this helps. -L.