as you may know i am at a distinct internet disadvantage since i am unable to see these red bumps first-hand. a description is just not sufficient to make this important call so you will need to have her pediatrician examine her. as much as i would like to help you it would not be possible for me or any medical provider to make a blind determination. i don't think her diapers or wipes are the culprit.
my 10 month old daughter has a few red bumps on her vagina. it doesn't seem the bother her. i just noticed the bumps about 1 hour ago. i have not changed her diapers or wipes since she born.