If you’re looking for the fastest way to stop sweating after a workout, try a walk-in freezer. But we don’t have a quick fix for treating hypothermia either. So let’s try fastest and most practical, yeah? Get wet: with cold water, inside and out. “You continue to sweat after a workout because your core temperature is still above normal,” explains Dr David Nielson, a physician who specialises in treating excessive sweating. “Lower your core temperature and you’ll shut off sweat.” Try Nielson’s “16-15” strategy: after your workout, slowly drink two cups of ice-cold water (avoid “brain freeze” from drinking it too fast). Next, take a 15-minute shower that’s as cold as you can stand. If you’re still sweating, down another two cups of ice water.