Start with good foot hygiene:
Still can’t control it? See a doctor. Treatment options include prescription roll-on antiperspirants, Botox injections, iontophoresis (a treatment that temporarily plugs sweat glands) and surgery.
Wash your feet with antibacterial soap. Make sure to clean between your toes.
Dry your feet, and sprinkle them with cornstarch, foot powder, or antifungal powder.
Wear moisture-wicking socks.
Change socks frequently throughout the day.