Your daughter is a cutie!
Cowashing is good for very dry hair. You can use make your own leave-in using conditioner and water: 40:60 to start. Just be sure to shampoo when you feel the buid-up in her hair. Then seal with shea butter or an oil of your choice.
Homemade shea butter mixture is good to use as a sealant or even as a moisturizer in drier months. When you whip the shea butter, add the butter and oils of your choice. YouTube has some wonderful examples.
Covering her hair at night with a satin cap (just about any store, and Sally's) or a satin pillow case would help keep tangles at bay and keep in moisture.
In the morning, lightly mist with your homemade spritz.
Don't worry-you'll find the right products for your daughter's hair.
ModCG-Naturally Highly Porous and Dry
This list is not exhaustive...
PT:Elucence Repair Treatment/DT:various
LI/Detangler:Curlisto Repair Styling Cream, Shima Repair Leave-in, various
Spritz:Nu-Gro spray w/moisturizer
Stylers:Camille Rose Curl Maker
Oils:tamanu, hemp seed, argan
Other:Redken Time Reset line