You neeed not use condom as aroutine.
Thanks for your query,based on the facts that you have posted it appears that your wife has been advised to take antibiotics and anti fungal medications by your family physician suspecting her to have UTI associated with fungal infection
The Zoron and Nexpro
are antacids prescribed normally to combat hyper acidity that one develops due to these drugs.
It is very common in females to get UTI and genital fungal infections due to use of common toilets at public places and vicinity of the urethral opening being very close to anus compared to males.This infection gets transmitted to male partner though sexual intercourse.
Please consult qualified Gynaecologist for clinical and vaginal examination and get following basic tests done to confirm the diagnosis.
1) Routine Urine test and culture.
2) Swab test of vaginal secretions.
In the mean while please continue taking drugs as advised by your family Physician.
Since both of you are in monogamous relationship and this episode of UTI and fungal infection can be cured with these drugs and it being a single episode after a long time it is not necessary to use condom in your day to day sexual life .
Hope I have answered your query ,please feel free to ask if you have more questions ,I shall be happy to help you
Thanks and Regards.