It might be worth trying Ionic Silver in a hand pump bottle and spray it onto your facial skin.
For your toe fungus it might work as well. For athletes foot I used Iodine in a pump spray bottle which cleared it inside a week. I used LugolsIodine but potassium Iodide might be effective without staining everything like LugolsIodine does.
Ionic Silver would probably equally effective without staining.
I do not rate ionic silver for internal usage, IMO Particulate silver ie true Colloidal Silver is more effective. Note that ionic silver does contain small amounts of particulate silver at around 10%. However Ionic silver is more effective when used externally. Make sure that you get the right one from a reliable source.