Oh boy...c-difficile! You must have gone through a really rough time...
I agree with you. Since I turned 65, it's one thing after another; arthritis and stiffness, heel spur, keratosis, back problems...and UTIs!...
We have to get out of TREATMENT and CURE mode and get into serious PREVENTION mode. Big Pharma has paid for doctor's education and that includes to a large degree teaching them which drugs work for which ailments. That should be a last option of defence.
As Hippocrates, the father of medicine said, "Let food be thy medicine and medicine be thy food.". For UTIs and for c-difficile, taking high quality (50 billion) probiotics on a daily basis is essential. I hope you have been doing that for the past few years. Avoiding sugars that encourage yeast growth and cause inflammation again is ultra important. You can get those urine testing sticks at your pharmacy to test your urine's pH. It should be 7 or higher (more alkaline) to prevent UTIs because bacteria has a hard time growing in high alkaline urine. You can help it along by taking baking soda. Since I have battled UTIs, success for long term periods with no UTIs have been due to the usual lifestyle PREVENTION tactics that everyone knows: drinking plenty of water, showering (after BMs) morning and night, eating at least 6 servings of fruit and veggies per day, keeping sugary foods and high carbs out of diet, keeping regular but also: taking a combination of the skin/pulp/seeds of cranberry in lozenge form. No it's not d-mannose. It's Utiva which can be ordered on line. Added to this is vaginal Probaclac from the pharmacy that kills bacteria in the perineal area. My God, it really works! My record so far with this protocol is 3 months then invariably I have a sugary meal or two and a UTI flares up and I have to take a course of antibiotics. Then the Utiva and vaginal Probaclac usually keep UTIs at bay for another long while. If not, it means that the UTI was not fully cured in the first place.
It took me about 40 UTIs in 3 years and a good 2 years of serious troubleshooting and 'research' to finally find the right prevention protocol. I go on the very credible site PubMed (where results of research world wide is published) for most information concerning UTIs and any other ailments.
Good luck!