Hello. I Have A Problem With Smelly Feet At Work

Hello. I have a problem with smelly feet at work and they get really hot and sweaty too. I don't seem to sweat from anywhere else except my feet. I have tried lots of things like changing socks half way through work, rotating shoes, I even went to the doctors and they gave me a driclor roll on to stop my feet sweating. But then my feet became unbearably hot and had to stop using it. Any advice would he helpful . Brendan.