Traditional Chinese medicine was called witch doctor in ancient China. What's the difference between a witch doctor and a wizard?

In my opinion, wizards and doctors are all for saving lives, just like traditional Chinese medicine and western medicine now. Witchcraft doctors are doctors with witchcraft as the main feature, and wizards have a wider scope, including yin and yang rooms, feng shui changes and so on. I think some people, whether witch doctors or wizards, are really brilliant, and they are knowledge that modern technology can't explain. Of course, I dare not say that many liars just fill in the blanks. Ruined the image of witchcraft.