Jiang Yi suddenly realized.
It was no wonder the doctor felt this way.
Although Yu Shengshou was a bit talkative, he had a kind heart and often treated people for free. The problem was that while he could waive the consultation fees, he couldn't do the same for the cost of medicine.
Medicine was provided by pharmacies, and he couldn't afford to buy it for his patients.
As for Anesthesia Powder, it was available but quite expensive. For well-off families, they could tolerate the cost by gritting their teeth and using it. But it was out of reach for the poor, who could only bear the pain without it.
Yu Shengshou was used to this situation, so he didn't think of it at first. He habitually asked Jiang Yi to get a cloth to stuff in Jiang Ning's mouth.
Fortunately, Jiang Yi was knowledgeable and managed to prevent Jiang Ning from enduring the pain needlessly.
She had never expected that Anesthesia Powder would be available here.