I'm sorry you've developed this troubling ailment. As a nurse, I've cared for lots of people with fungal infections of toenails, and my boyfriend has that problem with his toenails, so I've been reading up on the subject. I don't have experience seeing this problem in fingernails, but I would think some principles that apply are the same.

My first concern would be that 42 days of antifungal medication is too short a course of treatment. When you stop, you might lose any benefit you obtained. At the foot clinic where I bring my s.o., they told me that any treatment needs to last at least 18 months because it takes that long for a toenail to grow out. Fingernails grow faster than toenails, but I'm doubting that a fingernail is completely replaced in 42 days. I could be wrong. I'ld put a mark at the base of one nail with a permanent marker and watch it advance forward. The oral meds are toxic and you don't want to take them for a long while. But, if your liver function tests out normal, maybe you could be given them longer.

I, myself, am suspicious of fake nails as possibly creating a environment that allows the growth of fungus. If you get them applied, I'ld stop for a year. Also, I would recommend not ever cutting your cuticles, as is done in professional manicures. Furthermore, I would not have a salon manicure for a year. I have no expertise on which to base my advice. These are just my intuitive thoughts.

I knew a surgeon who recommended rubbing Vicks vaporub everyday on fungal toenails. Probably wouldn't hurt to put it on fingernails. OTC products that end in "-zole" are good for itchy feet caused by fungal growth. I like the liquid sprays. (clotrimazole, miconazole) They're not cheap, but they've helped my feet. Throw out any kitchen rubber gloves you've had for awhile. They might be good to use, but replace them often.

I'ld be very interested to know if the prescription pills clears this up for you. I'll be checking this thread. Keep posting. Good luck.