Is it normal to get these small blister-like bumps on my face post eMatrix? (Photo)

I have a lot of stubborn acne scars (rolling&boxcar) and am trying to treat them w/ Ematrix sublative laser. But, any time I do a procedure, I get these white almost blisters where the grid pattern is for about 2 days post op. Is this normal or am I causing more damage than good getting this done? Is there something I should put on it/take? It really doesn’t bother me (no pain and I know it goes away) but I really don’t want my skin to look worse in the long run if this isnt supposed to happen.