I've had this problem for many (at least 15) years and I'm finally getting some relief. I clipped the nail as short as I could and put Clarkia tinture under the nail. (As best I could.) The fungus seems to be dead and the nail is growing in normally behind it. I had tried everything, including Lamisil, and this is the only thing that has worked. Of course, over the last two months I've modified my diet to be less hospitible to the fungus.