If you have a doll with messed up hair, this the cure for it. and yes, this is a life dilemma...especially if you are the doll. (Perspective is everything, people) The Homesteading Housewife: Fix Tangled Doll Hair (several options)
How to fix a hot mess Barbie... I don't have a little girl, but I think this is good to know. Let you're daughter help and make it a fun "spa day" for the dolls.
How to restore dolls and make them look like new!
20+ Brilliant Dad Hacks That Make Parenting So Much Easier
How to fix doll hair. I just did this and it actually works. Avery loved doing it too. Now we have a bottle if "doll shampoo"! by proteamundi
Shining up old Barbie doll hair
Amazing DIY 2 Ingredient Doll Hair Detangler | The WHOot
Seriously?! Where was this when I was little!! How To Fix Frizzy Doll Hair - Perfect for Ponies!works for Barbie hair too
How To: Rehairing Monster High Doll:
Barbie Hair Fix. How to easily untangle barbie and doll hair.