Question: how to treat fungal nail infection naturally?
Answer: Hydrogen peroxide. Hydrogen peroxide can kill fungus that grows on toenails. ... 
Black tea. Soaking feet in plain tea can also be beneficial in treating toenail or foot fungus. ... 
Apple cider vinegar. ... 
Baking soda. ... 
Epsom salt. ... 
Clean socks and shoes. ... 
Essential oils. ... 
Ozonated oils.