Hi weydevu, I would pick some leaves of a Eucaliptus tree and some of a pine tree and make a tea, if you like add some honey for a better flavor, drink it before going to bed, for a couple of weeks. See how you feel,
Salt and warm water
in case You have developed phlegm
Although salt and warm water rinses will mainly tackle any phlegm in the back of your throat, it can also help reduce a build-up in your chest. If you have excess phlegm in your throat, there's a chance that it could drop to your chest and start causing problems there.
Rene