How do you dry your shoes?
-- They actually make Dryers specifically for drying your Shoes/boots.
-- Cramming newspaper into the shoes instead of a towel. The first step was to remove the insole, if possible. Then you would cram regular old newspaper into your shoes tightly. The newspaper would wick out the moisture. You would need to change out the paper at least once or twice, but it was very effective. And since it does tend to rain over there quite a bit, it sure helped to have a trick to help dry out your shoes.
That is the way to dry your shoes. I think these answers were help to you.
Your best bet is to remove all the visible mold from the shoes with a brush or towel. Once you've gotten all the mold you can off your leather shoes, try cleaning them with Tea Tree Oil and setting them out in the sun to fully dry and lose their smell. After they are dry you should wax your shoes to protect the leather and keep the mold from coming back.