S.S.
To this day... I have a barette and hair accessory phobia. I can't touch them, wear them and it gives me the heebie jeebies to look at them, especially a big mass of hair stuff in a dish or a drawer. It's odd, yes, but it doesn't keep me from functioning. But, there is no chance I'd ever become a hairstylist! LOL!
I wonder if your daughter might have been poked with some of that plastic thread that is used (it's like fishing line) and it can be very pokey and itchy. I would bet she had some clothes with that stuff and it is very uncomfortable. I have to pull tags from all my sons stuff that uses that thread to sew the tags on. I agree that maybe the Cinderella movie with Gus & Co. making Cinderelly's dress would make it better. Make button necklaces with big buttons and heavy (soft) yarn using the big plastic needles. It's amazing how these things start when you're little and then they seem to escalate.
Good luck,
S.