Suggest Treatment For Hair Fall

My name is Krishna, aged about 25 years and I am now identified Thyroid symptoms, i am previously like 2010, September, diseased like Jan-dies, Malaria, Typhoid coming that s my immunity power totally down, now at present i am observed like 2 years completed my hairs totally falling also thinning my hair,,, I am using hair fall control purpose lotion is ZYDIP-C, Scalpe (ketoconazole and zinc pyrithione shampo) day after day i am using, but no improvement... I am using now Thyroxin sodium 25 mg, now means from : 12-02-2014 to till date, early morning MT stomach, but now improved... and also regularly falling... So what is the solution... and how to grow quickly hair....