Mucus buildup

Patient: I recently came down with a cold and the main issue I’m having trouble with is the mucus. I have thick green mucus at the moment, and a lot is either in my throat, or I’m swallowing it. I’ve also puked up mucus twice, and nothing else. I’m wondering if there is anything I can do or take to help gid rid of or prevent me from this excess of phlegm.

Doctor: