However, frequent cannabis use, combined with frequent tobacco use, can certainly lead to an increase in mucous production and cam make mucous less viscous (more thick
and sticky), as well as coughing, bronchitis (specifically from
tobacco and moldy weed, which is more common than most people realize), and a slew of other respiratory symptoms..
I mean no offence to those of you who suffer daily from the discomfort of PATM, I am merely expressing my opinion.