severe dandruff and acne for 12yr old pl help

Dear dr kadwa,
My daughter 12yr old is suffering from severe dandruff and acne for the past two yrs.
She itches a lot and this causes red spots on her head. The dandruff is flaky and white in color. It is mainly in the back of her head. Pimples are found in both cheeks her forehead is clear. White pus forms and the acne takes a long time to clear up. She is very fair and the acne is pink in color. She very tall for her age 160cms. Her skin is oily and she gsweats a lot. She has minus .75 power in her left eye.
She is also inclined to do something adventures .i.e all the teachers should appreciate her, she should be the topper in the class. Her project should be the best.
Sometimes she gets headache due to sinus. If anyone rejects her ideas at school she becomes very dull and weepy . Comes home crying and wants to change school.
She is very obedient at home and hates anyone speaking bad words.
When she is tensed she stammers for some words her speech also lacks clarity.
I gave her pulsatilla 30 for a week but with no results.
Please help sir.
Thx.
Yesdee.