Well, after seeing the beginning of this *very long* thread, and all the safety questions, I called and spoke to one of the nurses at the monistat company (I myself, am a nurse, so I wanted to ask the company before jumping in). The nurse sounded surprised, first she said 'that's not what it was formulated for.' and I was thinking *no shit, that's why I called* she asked if it's over or under foundation that people are using it, and said she'd have to ask one of the doctors there. She also suggested that whoever uses it consult their dermatologist and have them look at it, or at the very least, consult your doctor. She didn't get one of the doctors there on the phone for me, but she took my phone#, so I may receive some sort of embarrassing message from the monistat company at a later date. She also offered to send me some coupons as a thank you for calling, so I will probably be getting a sweet envelope emblazoned with monistat in huge lettering.
In my opinion, though the ingredients may be the same as some other primers, they may not have the same amounts, or methods of formulating the product, which could cause it to affect you in a different way. Best bet is to check with a doctor (if you are embarrassed about it, just think about it, it could be worse, you could be like me, with a company known for it's yeast infection treatments sending you mail and calling you in the future... talking to a doctor would be private enough... lol). or if not that, analyze the ingredients list a bot more in comparison... do both the chaffing gel and primer have ingredients listed in the same order (since the list goes from most used to least, it could make a difference.)... also, if the primer has an 'active ingredient' list (I doubt it does though), like the gel should, does it list the same ingredients there/same amounts?
I may try this just for kicks, but I don't want to risk health (it could be dangerous to use on eyes, or block pores/oil glands)
That's just my take on it, though.
-Laura