How to Keep Dry
First step is a choice of the right antiperspirant. Deodorants restrain smell, not moisture while antiperspirant-deodorant is a solution for both. For some people deodorant is the only possible variant because of their sensitive skin that reacts badly to antiperspirants. Others don’t use it because of speculations that aluminum-based compositions - the active ingredients that most of antiperspirants contain – can cause cancer and Alzheimer's disease, which is actually not proved by any clinical study. The result is not affected by the type of antiperspirant (gel, solid and roll-on), but by time at which you apply the stuff. It is recommended by derms to put on antiperspirant before sleep at night and after reapply it in the morning.
For those who cool down and dry off after a workout very slowly, it is a good tip to take as cold shower as one can stand. All methods that decrease your internal temperature will help you stop sweating earlier. If you are lack of time, just stick your feet under the spray. One of the problems may be humidity that prevents sweat from evaporating.
For people who sweat, doctors usually advice to remove hair from underarms with laser, because it can reduce sweat production and decrease odor.