Editor's note: This article has been reviewed and updated for accuracy in 2026. “Dry mouth” — which is about much more than simply having a dry mouth — is absolutely nothing new. Just ask that uncle who used to be a pothead back in the day, and he’ll definitely tell you all about his experiences with this phenomenon, which has also been dubbed cotton mouth and pasty mouth. Smoking weed, old-timers will say, doesn’t only make your mouth dry. It also: Makes your tongue feel incredibly dry, along with your lips.Causes an unquenchable thirst (hey, at least doing weed will help you get to your “eight glasses of water a day” in a pinch!).Leads to a sore throat and its best friend, the hoarse voice.Has the potential to create a kind of “pins and needles” effect in the mouth.Gives you bad breath sometimes, because a dry mouth is a foul-smelling one.In some cases, and perhaps worst of all, ends with nasty and painful oral sores that can also appear around the lips. Those same long-time weed enthusiasts, who will definitely have experimented with edibles back in the day but who mainly smoked joints, will also usually tell you exactly why this happens. Dry mouth, they’ll vow, strikes because all that hot smoke quite literally dries your mouth out. The only trouble? That’s not true, or at least not exclusively. The fact that folks who mainly enjoy their cannabis in the form of <a href=https://herbceo.com/types-of-vape-pens/ target=_blank data-typ