Chronic cystitis is best treated with proprietary Chinese medicines under the guidance of Chinese medical theory. If the patient does not have stomach cold or stomach disorders, he can also be treated empirically with proprietary Chinese medicines. The following are some of the commonly used Chinese patent medicines: a. Bazheng tablet is a classical Chinese patent medicine for urinary tract infection, but it is not suitable for patients with spleen and stomach deficiency or long-term chronic diarrhea; b. Ning Ju Tai capsule is also a medicine for clearing heat and detoxification, dampness and laxative, which is relatively less irritating to the stomach; c. Kidney An capsule is usually taken before meals, which is relatively less irritating to the stomach; d. Heat Lin Qing granules, Heat Lin Qing tablets, etc. Chinese patent medicines can be applied. However, before applying Chinese medicine treatment, we should ask the patient whether he has a history of long-term diarrhea or fear of cold, if so, try to choose the one with less stomach irritation, which is more effective and has less adverse reactions.