I was using Vicks which did seem to keep my nail fungus under control. I had left a Band-Aid on my thumb which started the fungus over a year ago. Then I had slammed one of my fingernails and it started there also.
After I figured out I was having gallbladder attacks I started cleaning up my diet... going to do a Liver Flush soon. Anyway since I started eating healthier I noticed a big improvement in my nails. Been juicing carrot and beet juice. I had read beet juice is good for the liver... also cutting out bad oils and cut way down on sweets.
I was using Vicks everyday to keep the 2 nails from getting worse but haven't had to use it in weeks. I think in my case helping the liver get clean is getting the fungus under control.