I have a problem with my head, my hair is loosing day after day and I am feeling more inch and dandruff i went to physician he prescriped me drugs of ketocozole shampo and greseofulvin tablet 500mg but unfortunatly there is no any greseofuvin in my country then i took ketoconozole tablet 200mg for two weeks but stil i am loosing my hear and also inchy and dandruf. plz can you help me to prevent my hair