Medicine  for   Dengue    fever   for    researches*****Pitawakka  -6 kalan  + Pathpadagam-1.5 kalan +Katuwalbatu-1.5 kalan +Venivalgata-1.5 kalan + Kotthamalli -1.5 kalan  + water--------all together   well heated   up  to    reducing    volume   8  to  1   and     drink  it    daily    sharing    for   seven  days.