The next morning, Dr. Liu wakes up Ming and tells him to move closer to the tub so that he can answer his questions. He tells Ming to stay in the tub in order to learn about eye-sight-improving bolus, poria-cocos-cassia-twig powder, and the dragon-bear-snake-oil-formula. He also tells Ming that if he wants to try the potion for himself, he should do so right away. Ming is so impressed by the doctor's ability to cure him that he slaps him.