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Hi and thanks for the query.
There are a few things you can do to avoid / prevent UTIs.
You should void twice before going to bed with an interval of 15 to 20 minutes.
You should drink at least 3 liters of water to keep the urine dilute and less acidic.
You should wash the genital area separately from forward behind after a bowel movement.
You should perform sitz baths frequently. Fill a tub of water half, with luke warm water. Put an antiseptic like Chlorhexidine or Povidone-iodine about 50 ml in it and sit in it for 15 to 20 minutes 3 to 4 times a day.
Cranberry juice and disodium citrate sachets should be consumed whenever possible twice or thrice a day.
You can gradually taper off the above when you have had a UTI free interval of a longer duration than you have right now.
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Wish you good health.