Tian Yuantu didn't want to upset Wang Yao or his friend. Fortunately, his friend didn't insist on meeting with Wang Yao, although his mother was keen to thank Wang Yao in person. His friend was very compliant with his mother, so sooner or later he would want to meet Wang Yao again.
"Is there anything wrong?" asked Wang Yao as he noticed Tian Yuantu suddenly stopped talking.
Wang Yao knew the Regather soup just enhanced the Qi which was damaged by cold evil (a Chinese Traditional Medicine concept). It was a temporary solution. The disease would come back after a while if the root of the problem hadn't been killed.
The best solution was to meet the patient to find out what was wrong with her.
"My friend wants to invite you for dinner at his house. He just wants to thank you for treating his mother," said Tian Yuantu after thinking for a while.
"It is not necessary," said Wang Yao.