The Chinese herb Shi Wei is recorded in Shennong Ben Cao Jing as a mainstay of labor heat and evil qi, retention of urine, and facilitation of urine and water channels, and in the Famous Doctor’s Book of Special Instructions, it is recorded that Shi Wei is a mainstay of bladder distention and fullness, and in the Fugue of Medicinal Properties, Shi Wei facilitates the small intestine. The mechanism of Shi Wei is to induce the circumferential water to inject into the bladder, and subsequently the volume of urine increases, and the inflammation is opened up, thus relieving symptoms such as frequent urination, urgent urination, astringent urination, and painful urination, so Shi Wei can treat diseases such as cystitis and urethritis. In addition, Shi Wei also has the effect of clearing the lungs and relieving cough, there are reports of using Shi Wei to treat bronchial asthma, this belongs to the actual heat evidence, the actual evidence is very good, and whether it is urethritis or cough, it is generally best used for the actual evidence, not for the deficiency, so it is best to use the medicine under the guidance of a professional, do not blindly use the medicine yourself.