If you already have a bladder infection, drink plenty of water and "go" as much as possible. Try to "go" even if you don't think you have
Several things can help prevent a bladder infection:
If you are prone to bladder infections, drinking cranberry juice or blueberry juice at the very first sign may cure an attack, but drinking either often should prevent an attack. For those who don't want to drink a lot of cranberry or blueberry juice, you can now get it by pill form in Cranberry Extract or AZO Cranberry Supplement.
Everyone should "go" when they need to. Waiting causes urine to concentrate, allowing bacteria to grow. Habitually holding your urine will cause the bladder to stretch and eventually to start keeping a little urine in little pockets instead of emptying completely, allowing bacteria to grow.
Urinating immediately after (well, almost immediately after) sexual intercourse will flush out bacteria that may have entered the urinary tract.
"Due to the eliminative nature of natural apple cider vinegar, the kidneys and bladder can benefit tremendously by a 'flushing', which they receive when the following cider vinegar therapy is undertaken: two teaspoons of cider vinegar in a glass of water six times a day. It would be beneficial to drink a couple of glasses of water in the morning, taking one teaspoonful of cider vinegar in each drink. Comfrey tea, first thing in the morning with a teaspoon of cider vinegar will also create a sufficient cleansing action. Inflammation of the kidneys, called pyelitis, in which pus cells are present in the urine, will generally clear up with the above-mentioned treatment." (author unknown)