I have very minor cough. but i feel i have mucus in my chest (thick & not coming out {not much mucus} no pain, nothing). what can i use to let it ou?

Mucus: try some mucinex, (guaifenesin) which is over the counter. also increase hydration with water. You can thin the mucus out with water. If that is not working get to the doctor to have your chest listened to and make sure it is nothing else.

Delsym (dextromethorphan): I like Delsym (dextromethorphan) for mild coughs because it works for 12 hours.