I am 20 year old female suffering with excessive hair loss. I have dandruff in my hair. I have tried all natural ways but nothing seems to work. Finally I went to a dermatologist and he prescribed multivitamin capsules, a hair oil and ketoconazole lotion. He asked me to oil my hair every night and wash with the lotion every other day. It still isn't working. I lose clumps of hair every day. What could be the reason?