This situation is a deformity, that is, polydactyly (toes), which can be surgically removed. Before the removal, an X-ray examination is done to determine which one is redundant, that is, useless. After the removal, There will be no impact on the future.
Every living object (including appendages) in the human body will have nerves and blood vessels, but they will not be affected after removal. It is recommended that 3-year-old children undergo this surgery under general anesthesia. The sooner the better.
Don’t worry, this kind of surgery is very common in clinical practice.
As for the issue of Feng Shui, it is superstitious and not credible.
This condition is not hereditary and may be caused by external factors during your pregnancy.
As for the choice of hospital, it doesn’t matter, but you need to find a professional doctor.
All I can say to you is don’t worry, this kind of surgery is considered a minor surgery by professional doctors.
May your daughter recover soon!