A nurse in my doctor's office read the the riot act when I told her that I switched from smoking to vaping. She rattled off a list of things that included cancer, seizures, mouth sores, dizziness, gingivitis, broken fingers, .... hematomas, increased auto insurance premiums, and premature ejaculation. Well, ok...the last four were a slight exaggeration, but I can't remember all the crap she said. My doc came in as the nurse was finishing up her list, and he shook his head, told her to keep her agenda out of the office, and congratulated me on a healthier choice of nicotine delivery. He said that he's pretty sure that it's better than any of the Nicowhatever FDA approved meds are out there, to include the nicotine inhaler.
He's even gone to my local vape lounge and is trying to educate himself on the delivery systems as well as the e-juices, because he's seeing more and more of his smoking patients switch to vaping, and is truly interested in this.