How often do they shampoo her hair and what hair care products do they use? I absolutely have to shampoo at least once a week or sometimes twice a week in the winter because of dandruff and itchies. Do they grease or oil her scalp? that can clog pores. Trader Joes Tea Tree Tingle works well for me. But you may want to take her to derm to make sure. My mom had to take me for skin and scalp issues as a child. HTH