Are you sure your taking an antibiotic for a yeast infection? The most common treatment is with an antifungal such as Miconazole or Diflucan. Bacterium is a strong antibiotic and will make the yeast infection much harder to clear up.
Can I take bacterium with yeast infection antibiotic?
Bacterium is for another type of infection you have, if they gave you pill for Yeast Infection you can take them as prescribed by the doctor.