Once there was a plague in Suzhou and Ye Tianshi saved a lot of people. There was a patient called "Dageng", who developed general dropsy, had yellow-and-white skin. Seeing the severe condition, all the doctors gave him up. Ye Tianshi, however, cured him with just two doses of medicine after careful diagnosis.  

There was another patient suffering from a chronic disease that frequently relapsed. The patient was in great agony and went to Ye Tianshi for treatment. Ye made a prescription and ordered him to take a total of 100 doses for full recovery. After taking 80 doses, the patient passed one month without repeated attacks and he then stopped taking the medicine.

Unexpectedly, he felt ill again one year later. Ye Tianshi said to him: "I told you to take 100 doses, but you only took 80. It's no wonder you suffered an attack. Listen, from now on, take another 40 doses and the disease will never come back." And it turned out to be true.