If there are live mice in the shop, it will not affect Feng Shui. However, it is harmful in terms of hygiene and influence on customers. The place where mice gather is generally dark and damp. If they often appear in their own stores, they should improve the store environment and pay attention to some wet places. Clean and hygienic, ventilated and dry, on the one hand, can avoid the appearance of dirt and stolen goods, and also have air and physical and mental benefits to people's environment.
It is worth noting that there is no need to rush to see a doctor, because there are mice, there is no need to keep a cat. Don't kill mice, mice are still very human. Improving the environment and adjusting the mood is a good way to actively cultivate Feng Shui.
I hope I can help you.