It has taken five weeks of daily topical treatments to mostly cure the fungus on my right foot, which was extensive, but I have not seen any changes in toenails. I am so far impressed with how the anti-fungal sticks have nearly eliminated the scourge on my foot, which wasn't responding to prescription strength creams. I am hopeful that my toenails will also respond in time, and if so I will sing your praises for the rest of my days. I have been battling foot fungus for my entire adult life and this is the first product that has made a difference. I love that it is a natural product of essential oils and is not harmful to my health.