Good foot hygiene is the first line. Wash all socks in hot water/bleach. Air out all shoes. Never wear damp socks, you may need to change socks during the day.

I have tried garlic cloves between each set of toes for as long as possible, normally sleep like that. However this may “burn” the skin. I have also read a daily foot bath in Calendula flowers infusion to be helpful.

Fugus likes dark moist places. Sunlight is always helpful.

It is important to find the root cause, which may be a sugar imbalance.

GOod advice from Patricia.

Also, have a look at these ones:

https://homegrownherbalist.net/?s=fungal+topical&post_type=product&title=1&excerpt=1&content=1&categories=1&attributes=1&tags=1&sku=1&orderby=date-DESC&ixwps=1 TOpically

https://homegrownherbalist.net/?s=candida+&post_type=product&title=1&excerpt=1&content=1&categories=1&attributes=1&tags=1&sku=1&orderby=date-DESC&ixwps=1 Internally or topically

Tea tree Oil is quite good topically too.

https://homegrownherbalist.net/product/oil-of-the-tea-tree/