What can nicotine pouches do to your mouth?

I'm curious, what kind of effects can nicotine pouches have on one's mouth? Are they SAFE to use regularly, or do they cause any potential harm to our oral health? I've heard some people mention irritation and discomfort, but I'd like to hear more about the specifics of how nicotine pouches can impact the mouth. Could you please elaborate on the potential risks and benefits associated with using these products?