Cystitis is not cured for a long time is likely to be the cause of the disease is not removed, so should be clear about the causes of cystitis, and then the cause of the treatment, the common bacteria, drugs, foreign bodies and other diseases caused by cystitis. 1. Bacteria: this situation is more common, generally require urine culture, and under the guidance of the doctor, the application of antibiotic drugs, commonly used levofloxacin, etc., with alkaline drugs such as sodium bicarbonate to reduce urinary stimulation of the bladder and urethra. 2. Drugs: mainly some do chemotherapy, radiotherapy and other treatments, due to drug stimulation triggered by cystitis, can follow the doctor’s instructions to apply non-steroidal anti-inflammatory drugs, such as ibuprofen, with hot compresses on the bladder area, to help improve the symptoms and relieve bladder spasm. 3. foreign body: if the patient’s urethra into the foreign body, it is easy to damage the bladder tissue, resulting in cystitis, this situation should go to the hospital to the urethra of the foreign body out, and follow the doctor’s advice to apply antibiotic drugs, such as quinolones, such as oxfloxacin, etc. to give anti-infective treatment. 4. Other diseases: some patients with kidney stones or diabetes, easy to recurring cystitis phenomenon, for this case we have to give treatment to the primary disease, such as kidney stones according to the patient’s condition of extracorporeal shock wave lithotripsy, diabetic patients can be prescribed by the application of hypoglycemic drugs to control blood glucose, commonly used drugs such as metformin. It is recommended that patients go to a regular hospital to do a detailed examination, after a clear diagnosis and active treatment, only after the removal of the cause of the disease can get good treatment results.