2 days post PicoSure and experiencing facial swelling, is this normal?

It've been 48 hours since picosure focus. it was for pigmentation/minor fine lines. Technician used 3 diffrent optics (in his words) and the last one was the focus lens. My face got swellen since yesterday morning and it is still badly swellen. The redness is gone down quite a bit.There are some darkened pigments with some blisters. I'm worried about this swelling,wondering if I can have an antibiotic for this from GP. All says this laser is no down time but im worried if this is a side effect.