a few years ago, i used driclor.
www.netdoctor.co.uk/medicines/100000855.html
you use this once a day and it completly stops you sweating (i used it every day for a week and then returned to normal deodrant until i needed to use it again).
this really helped me and the embarrassing problem of sweating too much, i think you should try this before you use botox!
also, if you are not perspiring then there should be no smell, i think the smell comes when the bacteria in the sweat start to break down. so if you stop perspiring, there should be no smell.