What's the minimum number of passes permitted for Fraxel resurfacing treatment? (Photo)

Today, I was scheduled to undergo laser resurfacing with Scion Halo. When I was seated to begin the procedure, the doctor told me the machine failed, and suggested I underwent treatment with Fraxel (do not know any more details), telling me the results would be the same, just with more pain. I followed his advice. He did a total of 3 passes in my face and 2 in my neck. I was very red at the end, but 2 hours later, I am barely red at all a with no pain. Will I get any meaningful results?