Immediately following a root canal, I vaped and was fine.
While I'm no health professional, in my experience, you do not want to be sucking on anything following a tooth extraction. When they take a tooth out, a clot forms in the socket where the tooth used to be. You do not want to be sucking on anything (vaping, smoking, a straw in a drink, etc.) because that could cause the clot to dislodge and come out. This is called a dry socket, and it's the worst pain you'll ever feel. It will make the pain of an abscess feel like nothing at all. You don't want to be doing that. Why not wait to meet with the dentist and see what she says first before coming to any conclusions?