![Smoking weed making me cough brown phlegm. I mainly use dab pens every night for 3 months. This started happening 3 days ago. Should I be concerned??? : r/trees Smoking weed making me cough brown phlegm. I mainly use dab pens every night for 3 months. This started happening 3 days ago. Should I be concerned??? : r/trees](https://i.redd.it/mwbc5ly3p2791.jpg)
Smoking weed making me cough brown phlegm. I mainly use dab pens every night for 3 months. This started happening 3 days ago. Should I be concerned??? : r/trees
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IJMS | Free Full-Text | Inhalation Toxicology of Vaping Products and Implications for Pulmonary Health
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