How do I lower liver enzyme levels?

What is the cause? The treatment will depend on the cause. Liver enzymes can be elevated in a case of acute hepatitis , in hepatitis c ( acute and chronic), in drug overdose (tylenol, alchol etc) , drug related ( some statin /cholesterol medication, chemotherapy etc); red blood cell destruction ( hemolysis ) ;liver failure etc. You need to know why , before you can do something about it. Talk to your doctor in detail.
Depends . On the cause, fatty liver lose weight, alcohol stop drinking, biliary remove source of obstruction, hepatitis get treatment with antiviral agents, etc etc.