I am uncertain exactly how long it takes for cholesterol deposits to clear of your arteries. A lot of times, if a physician changes cholesterol medications or you change your diet and exercise they recommend having your lab (lipid panel (cholesterol/triglycerides)) rechecked in 3-6months, if that helps you any.
I do encourage you to ask you doctor or cardiologist. They should have a good idea of a more specific time frame.
Here is a link to information on Styes.
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