i have soft brown hair that looks very pretty when it is braided or is left open and there is avery rich glow that emanates from it.all this time my hair good days ,but when i came to minnesota during winter my hair started flaking due to a dry scalp.my hair was full of dandruff and then i also had the habit of itching my head most of the time making my scalp go red and swollen since i scratch it so often.i want to know that what is it that i can that i can do to cure dry scalp with dandruff and how effective it is?