Cure for Nail Fungus

My father always go to our farm every single day except when he got sick or he has other appointment that he will not go there. He told me the last time we talked that he is bothered by a nail fungus on his left foot toenail. He asked if I can get something for him to relieve it. Home remedies to cure nail fungus are what he needs. I am looking at different topical ointment but I still have to ask him to see a dermatologist to assist of what exactly is the type of microorganism it is so I can get a proper medicine for him. I researched online and at nail-fungus-toenail.com have a lot of home remedies that I can share to my Dad to alleviate his situation.