DD (11) has lovely long thick hair, but lately it looks very messy. She does brush it, but it looks still messy even in the morning. And in the afternoon it looks awful. She does not want me to do her hair, and I'm tired of the same discussion every morning, she gets upset quicky. She used to wear her hair in plats overnight before, but now days it feels uncomfortable, and I think this is the source of the problem. Children in school started making comments about how messy her hair looks. I don't want it to become a big issue, what would you do?