HPV HNC is totally different than smoking related cancer.
HPV cancer is caused by a virus, unlike smoking related cancer, which involves the breakdown of cells to the eliptical lining of the mucosa from exposure to carcinogens, like tobacco and alcohol. Even with tobacco related, they say for alcohol to have an influence it's by High consumption, like 4-5 drinks a day, 16-20 a week. As mentioned , the type of alcohol matters too, like spririts, wine, and then beer, which don't equal the same alcohol ounce for ounce.
Even though they say in high consumption, I'm always mindful what alcohol can do to the kidneys, since mine are poor now, and if it may lower the immure system in high consumption, which may have an effect on other illnesses, cancer, but I'm not worried about an occassional drink now and then. I don't drink much anymore, I have no taste for it, and probably the first time I tried was 2 years post treatment. No hard liquor for me, wine is too bitter, and drink certain beers, maybe a glass every month or so, and sometimes it's mixed with tomato juice, spices, and can make three drinks from 12 ounces lol.
There was a discussion about this 8 months ago, after all the magazines posted an article about the study showing even moderate consumption of alcohol can increase your risk of any type cancer, and the study was linked there, and is on OCF news feed.