My daughter has had 4 laser treatments without anesthesia. She is younger than your LO though (almost 10 months). We did try numbing cream with the first treatment but it is messy and I dont know that it made that much of a difference. I think the most traumatic part is just being held down. I'd just have some kind of treat/reward ready to give her afterwards and she will forget about it in a few minutes. Good luck!