I was just surfing the web and it said that clomid can make you have "hostile cm"

Hostile?? Its funny to hear it describes that way! So- what do I need to do to be ready to combat the hostility! I have heard of Robitussin??? Are they serious? I've also heard of pre-seed. Which is the best? I have never had the ten inch cm I see some people talking about, so I am thinking my cm may be hostile all on its own. Any imput appreciated.. Thanks