This is exactly what I was searching for..Thank you!  Can you explain how/why this phlegm in the lungs comes about? Last week I was totally healthy then one day felt a little pain in my lungs, the next day had a bit of a ticklish(from my lungs) cough, the following day started taking Mullein Tincture (expectorant), and today coughed a bunch of green phlegm up. No other symptoms the entire time besides a little fatigue. So curious what this has all been about, but glad to know the" green is good"! (As it usually is in most cases) ;)