Burn mark from BBL. What could this be? (Photo)

I did one round of a BBL laser treatment on my face, neck and chest. Immediately after procedure, I had redness, which subsided over a few hours, however, one red patch remained, which I suspect may be a blistering burn mark. I had some mild seeping, the first day,but now the patch is dark, red and rough texture. Almost a scab like appearance,The provider told me that this is normal and to continue to put Aquaphor or Vaseline on it a couple times each day. What could this be??