I would try MMS or Lugols iodine.
We have lots of stored iodine information if you do a search and we have a dedicated subform for MMS and you can also go here to learn about it. www.jimhumble.biz
My prefered treatment for UTI is homeopathy and staphasgria and cantharsis are the most common remedies for UTI, but there are others. Homeopathy will strenghten the system so it does not happen again any time soon.
__________________ "The nurse should be cheerful, orderly, punctual, patient, full of faith, - receptive to Truth and Love" Mary Baker Eddy