So I haven't smoked since my operation last year on valentines day (smoking did not play a factor in my oral cancer, confirmed by many cancer specialists and oncologists but once my mouth recovered after the radiation treatment sometime in May of last year the cravings came back.
So I started chewing nicotine gum after researching online that there is no conclusive evidence to support nicotine causes cancer per the medical journals I read.
I've been chewing the gum for a while for two reasons 1) it cures the urges and 2) makes my mouth produce more salvia.
Well my oncologist told me to stop chewing it and that it can cause cancer. My regular doctor said no it doesn't.
What have you heard or what do you think?

Large sore on right side tongue. Had for 3 mos. biopsied came back stage 2 well differentiated tongue cancer. Partial tongue removal and neck disect. On feb142012. Rads for 6weeks finished in June. Couldn't speak or eat for 5 months. Clear pet scan dec 2012. Former smoker hpv- 27male. Recent ENT visit said "as far as I can tell you're cured" 💗