I forgot to tell you. Do not drink cranberry juice if you already have the infection (which is what most people do). It is only meant to prevent it not cure it. It can actually make the feeling worse if you have an infection all ready. It took me about 2 yrs to figure that one out.
Also, a couple yrs ago I took the same Antibiotic you took. It wasn't strong enough so I had to go back to the doctor to get a stronger kind which did fix it.
Hope this helps!!!! I know the pain your going through!!!