What Is The Treatment For Severe Hair Loss?

helloo.. i m experincing severe hair fall pass 15 days...and unable to find a reason for the same.. i suffered from high fever and measles in the month of august... but i didnt have hair fall complains immediately thereafter...it all started 15 days back... and m afraid to even touch my hair.. coz a brunch of hair comes in my hand... currently i m taking a tablet called BTN Ultra.. can u please advice what should i do to stop hair loss ? plzzzzzzz advice..