i used to have a fungal finger nail, it was really really nasty looking nail. it took me more than 3 months to get rid of it completely. first of all, i minced lot of garlics and mixed with vinegar. i put the mixture on my finger for 10 min twice a day for ten days. u would see the well formed nail growing out. in this case, only if your situiation is related to candida. good luck.