After walking barefoot through a gym shower, pool deck, or locker room, the smartest thing you can do for your feet is dry them thoroughly and spray them with an antiseptic foot spray before your socks and shoes go back on. Those shared, wet floors are exactly where athlete's foot, foot fungus, and plantar warts spread from person to person — and a quick spray after exposure is one of the simplest ways to stay ahead of them.
Why shared wet floors are a fungus and wart risk
Fungi and the virus that causes plantar warts thrive in warm, damp environments and spread through direct contact with contaminated surfaces. Gym showers, pool decks, locker rooms, communal change rooms, hotel bathrooms, and airport security lines are all places where lots of bare feet cross the same wet floor. You can pick up athlete's foot, toenail fungus, or a wart without ever knowing you were exposed — the contact is invisible, and symptoms show up days or weeks later. If you use these spaces regularly, repeated exposure is the real problem, not any single visit.
What to spray on your feet after exposure
IodinePure Sole Shield is an aqueous (water-based) iodine antiseptic spray made for exactly this. Iodine has been used as a topical antiseptic for well over a century, and Sole Shield puts it in a simple two-ingredient, non-staining spray you can keep in your gym bag. After you've dried your feet, a few sprays over the soles and between the toes helps clean the skin of what you've just walked through. It's listed with Health Canada as a cosmetic and designed for daily, ongoing use.
When to use it
Spray your feet any time they've been exposed to a shared or public surface, including:
- After the gym — especially after using the showers, or after training barefoot on mats.
- After swimming — pool decks and changing areas are consistently damp and heavily trafficked.
- After a public or communal shower — dorms, hostels, campgrounds, shared change rooms.
- After the locker room — even if you didn't shower, the floor is shared.
- While travelling — hotel bathrooms, airport security floors, cruise ships, and camp showers.
A 30-second after-exposure routine
- Dry your feet completely — particularly between the toes, where moisture lingers and fungus thrives.
- Spray Sole Shield over the soles and between the toes. Let it dry for about 60 seconds.
- Spray inside your shoes too — the toe box and insole — so you're not putting clean feet back into a contaminated environment.
- Put on clean, dry socks.
That's it — under a minute, and it becomes automatic once it lives in your gym bag next to your deodorant.
Prevention beyond the spray
A spray works best alongside a few simple habits: wear shower sandals or flip-flops in public showers and around pool decks rather than going barefoot, dry between your toes every time, change out of damp socks and sweaty shoes promptly, and let your shoes air out and dry fully between uses. If you're prone to athlete's foot or already dealing with a nail issue, keeping the inside of your footwear treated matters just as much as your feet.
Frequently Asked Questions
What should I spray on my feet after the gym?
After drying your feet, an aqueous iodine antiseptic foot spray such as IodinePure Sole Shield helps clean the skin of what you've walked through on shared floors. Spray the soles and between the toes, and spray inside your shoes too, before putting on clean socks.
Can you get foot fungus from a public shower or pool?
Yes. Fungi and the plantar wart virus spread through contact with warm, damp shared surfaces like shower floors, pool decks, and locker rooms. Wearing sandals, drying your feet thoroughly, and using an antiseptic foot spray after exposure all help reduce the risk.
How do I prevent athlete's foot at the gym?
Wear shower sandals, never go barefoot in the showers or locker room, dry between your toes, change out of sweaty socks promptly, and spray your feet and the inside of your shoes with an antiseptic foot spray after each session.
Does spraying my feet actually help?
Cleaning the skin after exposure, keeping feet dry, and treating the inside of your footwear all reduce the conditions fungus needs to take hold. A quick antiseptic spray is a simple, low-effort addition to those habits.
Can I use the same spray on my shoes?
Yes — Sole Shield is designed for use on feet, between the toes, and inside footwear (toe box and insole), as well as on gear like gym bags, yoga mats, skates, and cleats.
Keep One in Your Gym Bag
IodinePure Sole Shield — a two-ingredient aqueous iodine foot and footwear spray for daily use and after any exposure to shared wet floors. Listed with Health Canada as a cosmetic and carried by over 200 foot care clinics across North America.
About the Author
This article was reviewed by Evan Lewis, PhD, who specialises in natural and nutritional therapies for the prevention and management of chronic diseases and complications, with a focus on chronic disease, diabetes complications, clinical nutrition, and nerve health.
