I find that Sudafed cuts down on my coughing, which is usually set off by drainage. Of course, you'll have to show your ID and have your name and address recorded and sign to get it (I'm storing up a rant about this). It also makes some people jittery, which may not make you happy if you're also using albuterol.

Also, hot shower or steam vaporizer to loosen things up.

My last ditch is usually something containing dextromethorphan -- one of the zillion cough suppressants out there. I understand that some people can convince their doc to prescribe codeine for cough as well.