Are there no cold pharmacies in Wanzhou, Chongqing on December 15th, 222?

yes. On December 15th, 222, there was a cold pharmacy in Wanzhou, Chongqing, and it was in normal business. Wanzhou District of Chongqing belongs to the jurisdiction of Chongqing, located in the northeast of Chongqing and the heart of the Three Gorges Reservoir Area. It was named after "Bihui in Wan Chuan", famous for "the gathering of thousands of merchants" and famous for "the thousands of customers come to visit".