I had it real bad for years on one big toe and then it spread slowly over the years. When doctors prescribed me Terbinafine HCL, I was on 1000mg a day for a severe rash on my arm, the one doctor thought I had sporotrichosis (mold infection) Anyways, I was on this for 3 months and it completely cured and got rid of the toenail fungus, also the rash. Then thats when I discovered I had a candida albicans problem. It all goes hand in hand. I also believe Terbinafine is possibly a good antifungal for combatting yeast. I’m still researching it.