bacterial infection
"Horrendous stuff.  Foul smelling, stomach-churning, nausea-inducing, ugh.  It made me feel I was on board a ship in a typhoon, retching hourly.  I don't know how people take this.  I will NEVER take this again if i can be prescribed something else that works.  I have some positive experience with the healing of the toenail but at what foul cost?"