My dad used to ask me to make him a pot of hot water with bleach to soak his feet when I was a kid. As I got older, I understood the relief of this ritual. When your feet get achy, sore or smelly, just plan beat up and neglected. The best thing for soothing refreshement is a hot bleach water foot soak. This soak does several things: it cleans very well, the bleach kills the fugus and bacteria, it soothes achy feet and it refreshes.
Get a pot large enough to fully submersed one foot in. Fill it with very hot water (and about 1 1/2 cups of regular bleach), not hot enough to burn yourself but hot enough to be unsure that you want to stick your foot in. Slowly ease a foot in until you can stand it,let it soak for 5 or ten minutes, have a fresh clean towel nearby and dry your foot off, then do the same with the other. It cures smelly feet for a couple of months until your next treatment, when you notice smelliness again. Try it, you'll like it.