Dust the insides of your shoes with an antifungal spray or powder to kill fungus spores.
I have heard about urine for along time but never seen it published.
This is done if you get a tingling on your feet and you think your starting with Athletes foot again.
Is urine nature’s miracle skin cure?
Will Urine Cure Nail Fungus & Athlete's Foot? - The People's Pharmacy
After that you start getting into some serious flakes. A study in the highly regarded Journal of Investigative Dermatology June, suggests that urea can improve barrier function and regulate gene activity in the skin to improve its antimicrobial defenses.
Urologist answers nine questions about urine
Can urinating on your feet in the shower cure athlete’s foot? – The Straight Dope
Can Urine Cure Athlete's Foot by Peeing in the Shower
Wash your hands with soap and water after touching your feet.