Ok, put my sleeping boob tick down....
Being AA myself, with a texture that is not completely "nappy", but more supercurly, and being where I live (well, used to live....I just moved) I had an extremely difficult time trying to find stylists in the area that were not hung up on straightening hair.
I did not WANT to wear it straight. But that's all anyone in that area does, no one wants to bother with trying to deal with it in it's curly natural state. A lot of them don't know how to deal with it in the curly natural state.
The first thing they always say is "You need to get a perm(or, relaxer)". Or, "Well, dont you want us to press it/flat iron it/curl it with the curling iron for you after we cut it?"
And even when I manage to get around those questions/comments from the stylist who is looking at me like I'm crazy when I mention that I don't want them to straighten it, and after they are finished with the cut, It's always "Well, it will look GREAT once you blow dry it out." As if to say, 'well, when we cut it, we were not catering to your wearing a curly style, but rather were cutting it with a straight hair style in mind.'
Now I am beginning to see more and more AA women who wear their hair natural, and more and more salons that cater to natural hair styles. Around here, they are few and far between though. You can't just look up the yellow pages and expect the first AA beauty shop you find to be all about natural. Usually, especially if your daughter has extremely super curly hair, they will try to tell you ways/products to use to straighten it out, and may try to suggest a "light" or "kiddy" relaxer to straighten it out.
I am for the idea that a woman/girl (or anybody, for that matter) should feel beautiful and confident in the hair she was born with. And should learn about styles that compliment that natural beauty, rather than try to fry/burn/chemicalize that naturalness into a different form. that;s just my opinion though.
I agree with everyone here. try washing it in a conditioner, and not using shampoo at all. I only use shampoo if I have obviously noticeable build up in my hair, or a case of dandruff. I rarely use it, I usually just use conditioner. You will be amazed at the difference.
Get a very wide tooth comb, and divide her hair into 4 sections, and gently comb each section out, starting at the ends, and working towards the roots, while wet.
Then start at the nape of the neck, and divide into sections, and braid her hair. This will keep it cool and combed out. When you are braiding/ combing out, keep a spray bottle of water next to you, and if it gets dry and tight, spray some water on it to loosen it up.
Keeping her ends trimmed will go a long way.
If you are looking for a good AA stylist, look for a natural one. If you see an African American lady with a beautiful natural style, do not be afraid to ask her where she got her hair done. That's the best way to find a good natural stylist. IF you search the yellow pages, usually the natural AA stylists will have an ad beside their number indicating that they promote naturality. If not, you can always just call and ask them if they do natural hair styles.
Hope this helps.

Just wanted to add, there is a good forum you can visit at naturallycurly.com
It has a system of categories, and you can try to figure out exactly what curly category closely matches your daughter's texter. The girls (and guys!) in that forum there are EXTREMELY helpful.