I got something similar to hives from chain vaping afternoon delight by rawr. Covered my chest and shoulders with tiny red bumps. They itched a little, but it never got too bad. Quit vaping for a week, it went away, and I started vaping a different flavor... Never came back. It made me sad, because the flavor is AWESOME, but it's better than having to give up vaping, which I was afraid of. However, I've never gotten anything on my adam's apple, or heard of that. I'm pretty new here, but I'd recommend not vaping whatever flavor you have been vaping anymore and see if it goes away... Or seeing a doctor.