Milk thistle is used to:
Treat liver damage caused by drinking a lot of alcohol.
Treat hepatitis (swelling of the liver).
Treat liver damage caused by some medications.
Milk thistle has other uses, but doctors have not studied them to see if they work.
Talk with your healthcare providers before taking milk thistle supplements. Herbal supplements are stronger than the herbs you would use in cooking.
They can also interact with some medications and affect how they work