I am a Chinese medicine practitioner. Sanjin tablets and Compound Shiwei tablets are commonly used drugs in clinical treatment of cystitis. Sanjin tablets include Rosa laevigata root, Smilax China, Yangkou, Lygodium japonicum and Centella asiatica. Sanjin tablets have the functions of clearing away heat and toxic materials and promoting diuresis. Used for short and red urine and astringent pain caused by damp-heat in lower energizer. The prescription of Compound Folium Pyrrosiae Tablets includes Folium Pyrrosiae, Radix Astragali, Radix Sophorae Flavescentis and Polygonum Aviculare. Among them, the function of pyrrosia is diuresis and bacteriostasis, and Astragalus has the functions of invigorating qi and rising yang, improving vital qi and enhancing immunity. Astragalus in the prescription can enhance human immunity, and recurrent cystitis is often caused by poor resistance and insufficient vital qi. Sophora flavescens and Polygonum aviculare also have diuretic and antibacterial effects, and have synergistic effects with pyrrosia. Therefore, for patients with compound cystitis, we suggest using antibiotics combined with compound Shiwei tablets for treatment, which can effectively reduce the use of antibiotics, enhance the body's resistance and prevent recurrence.