I am 23 year old boy. During my childhood I had lots of dark black hair on the head but now they started falling tremendously. Now patches is formed in both the sides of forehead. Nobody in my family or forefather had this problem. In addition about 50% of my hair has also become white. My hair has fallen so much that after bathing head skin is visible. I don't use any kind of chemicals or shampoo or oil. Doctor please help me to restore my gone hair and the patches formed and also how can I blackened my white hair back again.