Robitussin dm, chloraseptic spray, and lots of hot beverages, like hot tea. Unfortunately thats really all thats on my 'approved' list.
Unfortunately....NOTHING!! Sadly they don't give us much of anything besides tylenol. It's like they sware it "cures" everything. Rest is your best option. You could use cough drops but supposedly we can't use that either. Something about the oil in them possibly causing pneumonia when you have a slight cold when prego. Just use them sparingly. Best of Luck to you.