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Several years ago I had severe athletes foot disease and in spite of the anti-fungal creams I couldn't get rid of it until my Dr. told me to dry my toes with a hair dryer. I did and within days the fungal condition disappeared.
Why not develop an enclosure for the toes and tip of foot, provide separation between toes and blow warm air around there til the moisture (after a shower) disapates in about 10 secs. In addition, have a vent that adjusts to dry off the lower body. Nice!!