The median fever disappearance time was 32.8 h ( 95 % CI : 22.5-41 .0 h ) in the high dose JHG group , 26.0 h ( 95 % CI : 14.5-36 .5 h ) in the low dose JHG group , 39.5 h ( 95 % CI : 29.0-46 .0 h ) in the placebo control group .