This is a 43-year-old female suffered from severe dysmenorrhea since 2 years ago. The right ovarian chocolate cyst was diagnosed by gynecologist and right salpingectomy and right partial oophorectomy was performed in May, 2010, then received Leuplin treatment in the following 6 months. The dysmenorrhea got improved. However, in recent two menstrual cycles severe dysmenorrhea recurred. She came to our OPD to seek traditional Chinese medicine for relive. With the medication of clearing heat and draining damp, the patient's symptom improved significantly and no recurrence was noticed for more than 6 months follow-up.