My scalp is becoming very dry. I am observing some black spots in my scalp in some area covering my hair. I have less hair in my scalp. I have a dandruff issue from past. I was suffering from hair lost from past 10-12 yrs. Starting point of hair loss was because of stress and unnecessary teenage wories. Please give a solution of my black spots, dryness and dandruff of my scalp, so that I can save my remaining few hairs.