The estimated statistics of cystitis prevalence in Belgium are approximately 235,879 of total population. Treatment Antibiotic treatment and drinking plenty of water, Antipyretic pain medications may be administered. Over-the-counter products that increase acid in the urine, such as ascorbic acid or cranberry juice, may be recommended to decrease the concentration of bacteria in the urine. For a simple bladder infection, you will take antibiotics for 3 days (women) or 7 - 14 days (men). For a bladder infection with complications such as pregnancy or diabetes, or a mild kidney infection, you will most often take antibiotics for 7 - 14 days. Major research Some of the major researches on cystitis in Belgium are Intravesical instillation of cidofovir in the treatment of hemorrhagic cystitis caused by adenovirus type 11 in a bone marrow transplant recipient.