I got a laser burn during my first treatment. The tattoo was all swollen and covered in bubbles. Thomas said it was normal.
I'm under impression that he doesn't know what he is doing. He is trying to sell his cheap packages and book all the appointments back to back so that he could sell you another package asap. He booked my appointments for every 4 weeks (and sometimes less) and never hesitated to treat a laser burned tattoo without letting it to heal properly.
I recommend everybody not to try to save money on cosmetic services like this. Instead, look for the quality and the professional results. There is a place down the road that will treat you much better.