Since closed, non-breathable shoes made of synthetic material and wearing summer shoes without socks favour sweating of the feet, you should change your shoes frequently and walk barefoot as often as possible.
When using the foot deodorant pay close attention to the space between the toes, as these are particularly vulnerable to the development of Athlete's Foot. Moreover, footbaths with lukewarm water are refreshing. Tannic acid supplements (such as oak bark) can also reduce the sweating of the feet.