Swedish experts say they have seen a rise in the condition — which leaves the mouth covered in large, inflamed ulcers — in those who use the pouches, also called snus, that are placed just ...

While most people inhale 1-2mg of nicotine per cigarette or vape, snus packs a punch, with between 6-11mg per pouch. Users place snus under their top lip, against the gums. It is illegal to buy ...