Change shoes frequently. Avoid wearing a pair of shoes for two or three days, giving the shoes a chance to breathe.
Your shoes need fresh air. Your feet need fresh air, and shoes are as well. If the air is fresh and sunny, don't hesitate to take off your shoes and let them sit outside and let them have a good rest!
Put the shoes in the trunk. In the winter, throw the stinky shoes on the car. Let them put them in the ice and snow for a few days. After you get it, wait until they slowly rise to room temperature before wearing...