Have u tried the pediatrician? Local Clinic? School nurse? Walgreens take care clinic? It could be something other than dandruff or itchy product build up... I worry sooo much when kids are involved.... And if it is dandruff, excuse me for the freak out. I hope your little sis feels and gets better
3B, Fine, Normal P, Normal E, Low-Med D
LowP: Kinky Curly Come Clean (50% EVOO)
NoP: As I Am CC
RO: Suave Coconut, VO5 Shea Cashmere
LI: KCKT or CJBCLI or HETT/HENOYF (w/ 8 drops GSO)

"To much is given, much is expected"