What are these black dots on my stomach after iLipo? Is it a side effect? (Photo)

I was taking my weekly weight loss photos and noticed black dots forming a rash on the sides of my stomach. They look like tiny scabs but are smooth to the touch. I recently had iLipo treatment and was wondering if this could be a side effect of that. Other than that I have had some complications from nasal surgery I did in October and have been on antibiotics from then until end of December therefore my immune system is fairly weak and I just want to make sure that this is not an infection.