Thanks for providing more information.
There are various factors which result in thinning of hair and hair loss that may include Anemia,Thyroid dysfunction,Infection,Seborrheic dermatitis,Alopecia,medications induced,Stress.
As her Iron levels and Thyroid function test are fine and she has associated dandruff so Seborrheic dermatitis,Stress issues can be contributing factors in her case.
I also recommend to try 2% Minoxidil (Rogaine) solution applied over the scalp (1ml morning and evening).
Hair regrowth starts 3-6 months after regular treatment.
However to maintain the regrown hair Minoxidil lotion has to be continued & this can be done safely for however long you desire.
Tab Biotin in a dose of 5-10 mg per day is a hair specific vitamin and helps hair regrowth.
Calcium 500 mg twice a day also helps with hair fall.
Hydrate herself with plenty of fluids.
And I would also suggest using Nizoral-AD shampoo twice a week. Lather in and leave on the scalp for 5 minutes.
Having said this,a clinical examination by a dermatologist can be considered for further evaluation and management.
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