Community service. It is the only one that can be scentenced by the court.
If you are asking if its a physical or chemical change it would be physical.
There are several ways to identify if a health service provider is a quackery or not. But the best solution is to check the establishment's practices. Be sure that there is a certificate from the government approving of the place. Nurses and doctors should check the vitals of patients. They must also always have a visible ID.
No you don’t want to be driving during a blizzard