Bronchitis while pregnant!

This of course is not something you want during pregnancy but I got it. So I'm being treated with safe, OB-approved antibiotics, along with over the counter cough medicine. I have the worst cough at night. I can't sleep and I when I do get to fall asleep I wake up hacking up a lung. Please, someone tell me you have an idea of how to relieve the cough, pain and sleepless nights!!!