Dog's are much more resistant to Candida Albicans than humans. I have only seen Candida Albicans yeast once in 16 years of practice and that was in a dog's ear.
If you have ever had a urinary tract infection you know how annoying and painful they can be. Please have a urinalysis performed on a fresh urine sample from your dog, and give her the appropriate antibiotic's prescribed by your vet.
Give her a good probiotic at double a human dose while she is on the antibiotic to prevent a die off of beneficial gut bacteria
Patty, The frequent urination suggests that the infection is getting worse. What started as a UTI can proceed into a Bladder or Kidney infection if left untreated. The discharge would indicate worsening condition, also. I think your safe (Against yeast) with a few rounds of antibiotics. The only time I've seen yeast problems arise is through extended use of antibiotics, maybe months....However, the yeast problem does not compare to a rapid spreading bacteria. If you are still concerned, you can give a Probiotic to replenish the good bacteria along with the antibiotic. She needs to see a Vet..I would have her urine cultured to make sure she gets the correct meds. for the particular bacteria. Easier to clear up that way. Good luck and I hope she gets better, soon. Karla
P.S. I am not the Dr. Just someone who has had sick dogs for years. I adopt them that way.....(The ones that no one else wants!) :)