I've Had An Ongoing Cold For About 3 Weeks Now

I've had an ongoing cold for about 3 weeks now that I am fortunately on the downside of. Started off with a very runny nose then consistent coughing and loss of my voice for the next two weeks. I don't feel "sick" anymore but I still sometimes loose my voice where I can't even speak. In the past week when I cough ( which is pretty rarely) chunky green "boogers" come out of my throat, exactly like boogers from your nose. Not sure if I should be worried about it or if this is just the cold running its course. Please let me know.

Morgan