There are quite a few anti fungal essential oils. In my experience, none work exclusively and thoroughly on nail fungus. However, it may be that you'll want to add a few drops here and there to augment your treatment. Not sure the body / fungus acclimates to treatment but adding 2-3 drops (yes, drops) of any one essential oil to your mixture and then changing off every week might be of benefit. Most if not all on my list below contain phenols. Phenols are antiseptic chemicals, stimulate the body, beneficial in small doses; large doses can be a poison to the nervous system and other body systems.
Again, make sure they're diluted to .1% or less of total volume--hence the 2 drops in an oz. or two of your iodine/DMSO mixture. [note: Some essential oil MLMs advocate the use of neat - undiluted - essential oils. While very effective in treating a variety of maladies, it is the path to sensitization--not a pretty picture.] Extra virgin coconut oil is noted for it's anti fungal properties. I wouldn't count on it to eradicate a foot/nail fungus but I would use it to prevent one, once you've cleared it up. Essential Oils Tea Tree (Melaleuca alterniflia) Cedarwood, either Atlas<http://www.naturesgift.com/essential/descriptionc-d.htm#CEDARATLAS>or Virginia<http://www.naturesgift.com/essential/descriptionc-d.htm#CEDARWOODVIRGINIA> . Lavender (Lavendula vera, Lavendula angustifolia Lavendula officianalis) Lemon Eucalyptus *Eucalyptus citriodora*<http://www.naturesgift.com/essential/descriptione-g.htm#LEMON%20EUC> Myrrh (Commiphora myrrha) Tagetes * Tagetes glandulifera*<http://www.naturesgift.com/essential/descriptions-y.htm#TAGETES> oregano *origanum vulgare* thyme *Thymus vulgaris* clove *Eugenia carophyllata* **Lemongrass *Cymbopogon Citratus* sage *Salvia officinalis* lemon myrtle*Backhousia citriodora* Fragonia™ <http://www.naturesgift.com/essential/Fragonia-Essential-Oil.htm> research references //www.naturesgift.com/antifungal.htm //nail-fungus-treatment.blogspot.com/ //antiagingchoices.com/Aromatherapy/healthy_nail.htm //www.essential-oil-recipes.com/essential-oils-chemistry.html //www.health-oils.com/antifungalessentialoil.html http://www.deancoleman.com/essentialref.htm#eucalyptus http://www.essential-oil-recipes.com/aromatherapy-essential-oils.html //antinailfungus.com/toenail-fungus/essential-oils-cure-toenail-fungus //www.squidoo.com/toenailfungushometreatment //www.aromaweb.com/essentialoils/default.asp //www.healingnaturallybybee.com/articles/anti1.php //www.healingnaturallybybee.com/articles/anti6.php //ezinearticles.com/?Powerful-Essential-Oils-Kill-Nail-Fungus&id=2238

