use deodorant that its fit to you..
try other brand, test it out..
coz like me, before i change my deodorant mu previous deodorant doesn't fit to me.. its like even i put deodorant it still smells.. so i decided to change my deodorant.. now with my new deodorant, no smell..
use a perfume or cologne, then spray it into your clothes underarm before you wear it.. so if you sweat the smell of the perfume or cologne will spread, and you be smell like the cologne or perfume that you use..
try this out, im doing this if i know im going to be sweaty for the day..