Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain it seems that the white flakes over entire scalp along with itching seems to be due to Seborrheic
Dermatitis commonly known as
Dandruff..
It is commonly caused due to
fungal infection while can also be due to stress, poor maintenance of hair and scalp cleanliness etc..
I would suggest you to start applying shampoo containing
Ketoconazole, coal tar,
salicylic acid,sulfur, zinc, selenium etc..
Massage your scalp with a steroid lotion..
Wash the scalp every alternate day..
Avoid accumulation of sweat and moisture in scalp and always keep it dry and clean..
Gently rub the scalp with comb or brush and try to peel off the dandruff..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.