Not Normal: Coughing up small kight grey chunks in your mucous is not normal..But what is the cause. Sometimes after stopping smoking patients will actually produce more sputum/mucous for awhile because their "cilia" are no longer paralyzed. Why not also try a patch or some gum and see what that does? Hard to know all that's in the e-cigarette?
Answered 2/9/2016
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