The patients with bladder cancer usually required trans urethral resection of bladder tumor (TUR-BT). Post-operative intravesical installation therapy is standard therapy. However, new onset lower urinary tract symptoms often occurred after these installation therapies. JING SI HERBAL TEA is a food contain of many herbal extracts with anti-inflammation effects. The current study is to find out the effects of JING SI HERBAL TEA in the treatment of this condition.~The patients will be divided into two groups by randomly assigned (estimated case number=100, experimental: control = 1: 1). The first group will receive two sachets of JING SI HERBAL TEA a day (one in the morning and one in the evening). The second group will receive two sachets of placebo a day (same way as group 1). The therapy will be three days after each intravesical installation therapies.~The outcome evaluations will use the American Urological Association Symptom Index and 12-Item Short Form Survey (SF-12). The baseline symptoms will be recorded before the first intravesical therapy. Patients will be asked to fill out the questionnaire every week (the same time for the next installation). Every other standard cancer therapies will not be will not be affected.
To identify the effects of JING SI HERBAL TEA in the treatment of lower urinary tract symptoms after intravesical therapy in patients with bladder cancer.