A member asked:

Black streaks in my mucus and tight lung feeling :( i'm 19 and smoked for 3-4 years ?

A doctor has provided 1 answer

Stop smoking: The lungs are very delicate, used to extract oxygen from the air and transfer it to the blood. Filling them with soot is very harmful. 4 years of smoking isn't enough to result in cancer but within a few weeks if giving up smoking, the chest tightness and abnormal mucus should stop.

Answered 1/3/2016

3.4k views

Thank

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