If you are given antibiotics to treat a STD, it is important that you take all of the drug prescribed to you, even if the symptoms go away. Also, do not take someone else's medication to treat your infection; it may make it more difficult to treat. Here are some specific STD treatments:
LDL's are cleared by the liver. HDL is generally fatty acid poor and cholesterol ester rich. It contains a different apolipoprotein which helps the body tell it apart from LDL. Simply put, it transports cholesterol back to the liver from other areas of the body.
The division into HDL and LDL is based on how the cholesterol combines with protein particles. LDL and HDL are lipoproteins -- fats combined with proteins. Cholesterol is fat-soluble, and blood is mostly water.