Is it worth investing in a UV shoe sanitizer for recurring fungal infections?

I’ve been looking into those UV light shoe sanitizers lately because I can’t seem to kick this athlete’s foot for good. On one hand, some studies suggest they kill 99% of bacteria and fungi, which sounds like a game-changer for someone who sweats a lot in work boots. On the other hand, I wonder if the light actually reaches the deep crevices of the toe box where spores might hide.

It would be helpful to know if people use these alongside antifungal sprays or as a standalone preventive measure. Does the material of the shoe—leather versus synthetic mesh—make a difference in how effective the UV penetration is? I’m also curious if the heat generated by some of these devices might actually encourage growth if the shoes aren’t completely dry first.

There are so many conflicting reviews online that it’s hard to tell if this is a legitimate medical tool or just an expensive gadget. What has your experience been with these devices?

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I bought one last year. It definitely helps with the smell, but I’m not sure if it killed the fungus on its own without the creams.

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Honestly, just use antifungal powder. It’s way cheaper and actually covers every inch of the inside of the shoe where the light might miss.

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Which brand are you looking at? Some of the cheap ones on Amazon don’t even use real UVC bulbs, they just use purple LEDs which do absolutely nothing for fungus.

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The science is solid for UVC light killing spores, but the issue is line-of-sight. If the light doesn’t hit the spot, the fungus survives. I use mine every night after work and haven’t had a flare-up in months, but I also use a spray once a week just to be safe. It’s more of a multi-pronged approach for me.

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Following this thread. My podiatrist mentioned them but didn’t give a specific recommendation on a brand.

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I found that the UV light actually made the glue in my running shoes brittle over time. Just a heads up if you have expensive gear; that high intensity light can degrade certain plastics and adhesives.

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