This article discusses how the Fuyan pill treats pelvic inflammatory disease (PID). PID is an infection and inflammation of the female upper genital tract. The Fuyan pill works according to traditional Chinese medicine theory to clear pathogenic qi and dampness that have gathered in the pelvic cavity, thereby damaging reproductive organs. It contains herbs that nourish blood, clear heat and toxins, and promote blood circulation. By addressing symptoms, reversing tissue damage, and eliminating the root cause, the Fuyan pill can completely cure PID within three to four months of treatment.