Wash your feet daily with an antibacterial soap; be sure to wash between the toes. Dry the feet thoroughly, then apply cornstarch, foot powder, or an antifungal powder to your feet. Wear wicking socks made of natural or acrylic fiber blends that draw the moisture away from your feet instead of trapping it.
This bad smelling sweat is called bromhidrosis. Bromhidrosis the accumulation of bacteria, fungi, molds and yeast on the foot, especially between the toes.