10 to 1 Water and clorox (ten water to one Clorox) every bath or shower and you will cure that fungus in the nail and nail bed.
I used to think my MIL was insane for using bleach whenever my husband and his siblings got into stinging nettle, poison ivy, etc.
Now, we give our kids bleach baths, as prescribed by the dermatologist, for eczema and all skin issues. It works so well.