Avoda Zara 6: Don't Benefit Idolators, Lime as Cosmetic

In their discussion about the use of an animal that is treifa, disqualified from use in sacrifice, they turn to discuss Noah. Noah was described in the Torah as righteous; did that mean that he was perfect in every way?  The rabbis argue that perhaps Noah himself was a treifa, and I assume this refers to his physical body as being different from the norm in some way.

Moving on to discuss the limitations on buying, selling , or otherwise benefitting Gentiles before their festivals, the rabbis speak of Nochrim, Christians, in particular.  We learn that Christians celebrate every Sunday, in addition to their major festivals: kalenda, saturnalia, and kretesis.  For the three days leading up to Christian worship - whether their festival was one or more days - Jews are not to do business with Christians.  This might assist Christians in their idolatry, and Jews are also commanded to blot out all idolatry in the world.  

In discussing what is distressing and what causes pleasure, we are told that borrowing and lending are both forbidden even though a Christian might be distressed after paying back a loan.  Further, women were permitted to use cosmetics including lime on their skin as a beautification tool (lime was a hair remover and skin purifier) as long as the lime was removed before the Festival.