Blistered Gums from Zoom Whitening?

One side effect of Zoom Teeth whitening (or other types of in-office teeth whitening) can be a chemical burn to the gum.  At this point I think the best thing to do would be to let it heal for about 2 weeks. You have done an excellent job photographing the progress. 

The healing will move quickly, it will probably look better and better every couple of days. While its soft like this, I would not brush very hard at all. As the gum gets tougher and tougher, you can brush it more normally then.

While a lot of that gum line shows in your photos, in real life, the height of one's smile varies a lot from person to person. If it doesn't show with your typical smile, I would just give it time. 

It's possible that it can take a month or two for it to really toughen up all the way.

I wouldn't do any touch up whitening at home until the gum is perfect again. 

I would make sure that the cosmetic dentist you saw for the teeth whitening is aware that you had an issue. Sometimes for procedures like this, they are primarily done by the staff and he may not even be aware you had an issue.

If you are very worried about it, AND it is healing slowly or poorly, then you would have the option of seeing a periodontist (gum specialist) who could help monitor it with you. (That's probably overkill, unless you can't sleep at night thinking about it).

Sorry to thear about the injury to your gums after Zoom treatment!  It appears that perhaps some of the whitening solution may have touched the gums.  While this looks distressing, don't worry!  Your gums are very resilient and  will  heal in just a few more days to a week.