Yes, it takes a lot of patience, as it cures the fungus on the new nail and you have to wait for it to grow out and keep treating the infected part. My nails were very infected and it has taken a year, but it is the only thing I have tried that worked
I've been using Funginix for about 6 months and it's slowly clearing up my fingernails' fungal infection. Other products sort of worked for me, but they were either too weak or too harsh. Some, like the vinegar-ingredient cures were to caustic, making the skin scab over and harder for the product to reach the infection. Some strong oils made my skin bubble up. Even non-infected skin was irritated by some of the other products.
This product doesn't affect/damage the normal skin but kills the fungus in the infected parts, then the dead skin flakes off. In my case, it looked worse at times, but it was just the flaking off of dead skin debris. Once it flakes off, healthy skin is revealed underneath.
NOTE: It takes time, so you have to be very PATIENT and CONSISTENT. Don't expect "instant results" to mean "instant cure." Yes, there are instant results--little results that progress bit by bit. As you know, fungal infections are really stubborn, so you have to be more stubborn then they are in your efforts to eliminate them. And I guess it doesn't work for everyone, especially when your problem is not fungus but some systemic problem like diabetes, etc.
As the instructions say, use it every day, apply it at least twice--twelve hours apart. But if you find that it got washed off accidentally, you have to reapply it. Also, you have to religiously and CLOSELY inspect your nails to observe the progress. Cut off the dead nail and skin to reveal the nail bed. Sometimes I've had to pick off or cut off the dead skin prematurely to get closer to the nail bed. Most important you have to get every last bit of it. A tiny bit of fungus that's almost invisible will soon grow and flourish into a whole mess. So be thorough in your cleaning of debris so the nail bed gets clearer and smoother. So far, it's killed 90% of the infection.
But the hardest part is to get the fungus right at the point where the good nail and the infected nail bed meet. It's really hard to get the oil/cream there, so again, you have to inspect closely and almost surgically (with your nail clippers, files, etc.) get away all the obstructive dead tissue to reveal the fresher infected part. It's a task but it works.
See the attached "after" picture (sorry I don't have a "before" shot.) ... where all the thick, painful, yellow, infected skin and debris were--is clear and smooth. The smooth nail bed is 50% exposed while the nail is still being cut back and treated. There's just a 10% infected part at the edge of the nail and 45% healthy nail from the cuticle to the edge of the nail. I'll let you know how it goes...
It will be useful to have fingernails again. You never realize how useful they are until they're gone! :D
There is a reason why if you Google for Funginix, you find about 50 suspicious looking sites that all say this stuff is super duper awesome. All of those sites are written by the same person in some scammer-cave. Funginix doesn't have anything going for it except the snake oil salesmen behind it. Avoid.