Cigarette smoke is a horrible irritant.
Sucking on anything after that procedure is very bad.
I remember when I made my ex go and have her wisdom teeth cut out.. Believe me, I did not want to .. but I knew it was best, for her. Man it was horrible. I wouldn't let her smoke very much, at all(looking back on it I should have just cancelled her smoking completely. I'll never have a lady friend smoking, ever again.), but I also didn't want her withdrawing from nicotine while she was so miserable anyway. She, of course, ended up with the dry socket.
There is nothing worse than when your woman has just had her wisdom teeth removed... I took care of HER for over three weeks.. and she couldn't do something VERY important. God, I am so wonderful, I just took care of her even though she couldn't take care of me!!
I'd say that cigarette smoking did that dry socket to her. A cigarette, it's producing a horrible irritant and you have to suck on it.
Just set your e-cig up to be easy draw. If it's a hard pull unscrew it a bit. If you have cartos run a small wire through them and make sure the little hole is centered. I know that pg will dry you out in some ways, but, I don't imagine it'd cause "dry socket".
Oh god I hope I never have to be with a woman through that again. That was torture. Looking in there all of the time checking it for her and .. Well it was just torture. Oh my Lord. But at the same time I felt so good about myself being such an angel for her.