The Chinese medicine black and white clown is also known as petunia seeds, its efficacy is can diuretic swelling, diarrhea and laxative, but also can kill worms and attack the accumulation, clinically the drug has a certain degree of toxicity, the dosage should be under the guidance of the doctor, the reasonable application. Black and white clown can assist in the treatment of some related diseases, such as edema in the body, as well as stomach distension, especially pediatric abdominal distension, through the treatment of black and white clown effect is very obvious. For patients with asthma, cough, and respiratory system of chronic bronchitis, obstructive emphysema, acute pneumonia, can be adjusted. Through the black and white ugly to treat the digestive tract diseases, like the stool appeared abnormal, also can be treated. In the clinic black and white clown can promote smooth muscle contraction, for the improvement of constipation appeared in the intestinal tract, the effect is ideal.