When you smoke a hookah the flavored molasses or honey that is soaked into the tobacco or herbal mix of ingredients is volatilized into the flavored smoke you pull from the pipe
However, nicotine itself is what causes addiction
[2] Using chewing tobacco can cause various harmful effects such as dental disease, oral cancer, oesophagus cancer, and pancreas cancer, coronary heart disease, as well as negative reproductive effects including stillbirth, premature birth and low birth weight
(Now that is a lot a chewing!)
If someone swallows chewing tobacco, there can be stomach upset, nausea, and vomiting, but typically, the ingested tobacco is vomited up before there has been absorption of the nicotine
To help my loved one, I concocted a fake snuff using plants from the garden