I have come to realize that I believe that the cooling part and fans has kept the fungus active for whatever reason and since I started doing Bob’s Protocol in December, the last two months, no fungus at all !!! Nails are softer and not as hard. They look good. However, I do think that Bob’s Protocol has helped with the fungus and no I have no explanation of it. Except I had the fungus for almost two years and used prescription cream, etc. and nothing helped it. They wouldn’t give me the pill as it was too risky for me. Fast forward and everything has improved including that! I feel more comfortable now going out in flip flops having better looking nails.