You need to give more information...does it hurt when you urinate? Do you feel an urgency, even when you have just gone? Cranberry caplets DO help, but if you have a raging bladder infection you need anti-biotics. You don't want to let it go on and on, bladder infections turn into kidney infections if not taken care of...and you really REALLY don't want that.
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I'm not sure what your bladder problem is, but taking cranberry pills can help with issues in preventing and treating urinary tract infections and bladder infections :)
First off, are you holding in your urine even when you feel the sensation to urinate? If you are, that can lead to a yeast infection.
Drink lots of water, stay away from sugary and bubbly drinks, and if the problem persist go to the doctor.