This works and I know it sounds crazy but it you change out your shoes through out the day. I have shoes that have a wedge (approx. 2" high in back and 1/2-3/4 in front). I worked in salons with concrete floors for over 35 years from 10-12 hours+ 5 days a week and on the deceased in between. Changing shoes throughout the day makes a difference takes pressure off the feet from being in one position on consistent basis. The flat ones like ballerina slippers are the worst. I never stand in my barefeet for a long period of time. If you do sit down for a few minutes and can put your feet up for at least 10-15 minutes every couple hours do that. Those thong sandals (flip flops(?)are as bad as the ballerina slippers.