Coughing up of mucus?

Yes. I have bronchitis, as well. Those '' can be a really good sign to watch out for more serious things that are going on in your lungs. If they turn to yellow or green, be sure to get to a dr's office. Yellow is often the start of an infection, while green is a bad infection for you. Drink lots of water, stay clear of cleaning fluids, sprays, and other things that set you to coughing. Don't smoke, or it will get much worse.