I just read a little something on one of the other threads about a supplement called n-acetylcysteine. It supposedly can help with pulling (even webmd listed it as having some evidence as a potentially effective treatment for trich - though, of course, it's still not known if it REALLY is effective).

I think it's worth a shot, I'm ordering some today. Pretty sure there is a higher chance of the stuff being helpful than harmful, so why the hell not.