The more you use it, it kind of seems to build up a "resistance". After the first week of applying it everyday, i then didn't need to use it for another month. So considering you've only used it once, i would wear the pads and see if you sweat. Then if you don't you'll know that you won't need them again.
However I think its good for everyday sweating but if you're busy, I'm not sure, when I used to go to the gym, it would reduce it but definitely not completely stop it.
I wouldn't reapply it during your break because it is very strong and is suggested to be applied during the night because it can cause itching, it was so bad for me that I had sleepless nights (im thankful I rarely apply it now)